Motorized bike high idle With an occasional stall. Thread starter Yountz; Start date Sep 12, 2024; Prev. The You Tube Link Here are the things that I have done so far to make it run less rich and to smooth things out. Quick question - I am trying to adjust my idle, but turning the idle screw in or out does not seem to affect the idle. motorbike The bike is able to go 50km/h again. So I shut it of pretty quickly after it fires. Cant get rid of really fast Mar 14, 2011 · The horizontal screw that rotates the throttle shaft is the IDLE SPEED ADJUSTMENT. 1. I currently run 29 inch tire with the stock 44 tooth sprocket. Start the engine up and spray some ether (Quick-start) or carb cleaner around on the engine to pinpoint the leak. What would possibly cause this? Intake leak? Thanks in advance Mike Dec 19, 2021 · Really high idle fix Yountz; Sep 12, 2024; 2-Stroke Engines; 2. Make sure you also have a headlight and tail light in case you ride at night, and reflective material to be sure you are seen on the road. Mar 5, 2012 · Anyone got an idea where that problem may be? Sounds like an air leak. Sometimes an intake leak causes a lean condition that cannot nor should not be remedied by carburetor tuning. As Joe says this is strictly for taking the slack out of the cable. I got my motor under warranty and it was in the shop 3 times. Without the ability to adjust the mixture ratio at wide open throttle settings then it is hard to have the mixture ratio optimal for optimal engine power at high RPM. Default Nov 18, 2023 · Next problem it's reving to high I mean way to high so high with no throttle I can barely stop it pull in the clutch revving way high to the point I'm afraid it'll blow up. Thread starter sb bikes; Start date Aug 18, 2008; Forums. It seems that after the motor gets hot the idle just keeps climbing. This is a Idle Adjustment Screw w/ Spring for a standard carburetor Part Number (See Parts Manual): 4-15. the motor is running very good (but idles high) and ive also made sure there are no leaks. I have some experience as this is my 2nd motor but Jul 4, 2020 · A very high idle can be caused by an air leak or the throttle assembly. If, on the other hand, your idle runs too low, turning the screw out will lower the slide and restrict the amount of air coming in to help the cylinder reach the temperatures it needs. Certainly that is my problem and could be yours. There is NO high speed mixture adjustment. Motorized Bicycle Welcome Forum. I can see an addiction coming on. Gaskets everywhere are new and have added high temp gasket Figured it was the old carburettor intake boot so moved it around and managed to get it to run without choke but it idles super high rpm from startup now. Pocket bike clutches engage below 3,000rpm. High Idle. Definitive guide to bicycle motor kits; Best bike for a motor kit; V-Twin Motorized Bicycles – Unleash the Beast; How to start a motorized bicycle; Motorized bicycle clutch adjustment; Motorized Bicycle – The Grand Tour; Rat bike motorized bicycles and rat rod bicycles A motorcycle idle that is a little high is not dangerous for your bike but isn’t optimal either. Replies 14 Views 945. I pedaled it around for at least 500m in total in 50m lengths on a high speed (about 25+ km/h). Local time 4:44 PM Plus fitting instructions & performance tips for motorized bikes. 5 turns causes the engine to not even idle while stopped. For a while, then the bike would no longer idle. when i rotate the idle needle on the Aug 16, 2021 · With a long intake, you will get a long drawn out down spin to idle. Jan 20, 2025 · After installing a g2 reed valve and windowed piston i have bad idle and terrible low end power. MZ65 is the best "bolt-on" pipe. 3 THE BEST SPARK PLUG FOR MOTORIZED BIKES. Warm the engine, set a high idle. Anyways now that everything is back together aga Anyone ever had real fast idle on start up, with choke on or with it off?. I now have a problem that is eluding me. get the bike running and pullin the clutch lever and lock it while blipping the throttle and turn in the screw to get it to idle at an rpm that makes you happy. Engine starts with medium choke and slight throttle 2. Jul 3, 2008 · I have fitted a 2 stroke ATV motor to a pedal bike with a coaster brake. The problem gets worse as you go up the Aug 17, 2008 · no your bike should run while stopped with the clutch disengaged. I'm am wondering if it is the carb I need to adjust and if it is the carb what adjusting should I be doing. Test Ride Your Motorized Feb 20, 2017 · Motorized Bicycle Forums. Replies 14 Views 918. $157. ), and float height. Tight valves also lead to worn valve seats and deformed valves. May 29, 2024 · Welcome everyone, I recently put together another 2 stroking motorized bike (100cc) and had the worst time doing so. My first clutch always engaged at idle and the only way I could have fixed it was to put in higher-rate springs. While I am technically up and running, engine needs some fine tuning specifically engine idle. I have checked for air leaks everywhere. Default System Light Jan 22, 2023 · In this video from the BikeBerry channel, viewers will learn what to do when their engine won't start. Jun 16, 2008 · Current visitors New profile posts Search profile posts. After 10-20 seconds, it then settles down to normal idle. May 1, 2019 · Don't try for much speed during this normal process, when the motor frees up you will notice it. May 18, 2008 · On the left side of the carburetor near the front is the idle mixture screw. I checked my throttle cable by removing the air cleaner, it does not close the carb completely when cable relaxes. Warped intake flange, gas damaged intake gasket, carb intake collar connection, crank seals, and even the top of the carb throttle adjuster where the cable goes in can all be sources of a vacuum leak that may not be initially apparent. The rpms stay high when I release the throttle for what seems like atleast a minute. Two months ago, I’ve run into a huge problem that I need help with. If you let go of the clutch when you are not moving and don’t give it any gas, the motor will die. And must use yics tool or make one to isolate each carb,they are easy to make. I tried replacing the carb with a "rebuilt" spare, replaced the fuel cable with a brand new one, and took off the twisty throttle and put a squeeze handle on instead. I might try 1 turn out on the AS, cause I'd like to avoid the super high idle on startup deal. Air leaks are common along the air boot or the intake manifold. It's pretty much annoying Lastly, never forget safety. Simply adjust the screw for maximum idle, and then turn the screw approx 1/16" counter-clockwise [slightly rich]. motorized bikemotorized bicyclemotorized bike reviewhow to bu There are many problems associated with tight valves. A perfect idle is one that is low in RPM speed, but still keeps the engine running strong and doesn’t sputter out. With practical troubleshooting tips, you’ll be back on the road with optimal RPM levels for a smoother Jan 29, 2011 · Idle screw setting and WOT bogging issue I have a china "Raw 80cc" engine that I need to have the idle screw pretty much screwed in all the way to have the engine idle without dying out. The idle screw is actually responsive to minor adjustments and is in a normal position. When testing the ignition on motorized bicycles, it is wise to disconnect the leads to the kill switch altogether. The Q-Matic can be ordered with custom ratios. I read several causes and attempted to fix them all. When your idle is high these are usually the problems you come across: Louder than usual noise from the motor winding up Jan 5, 2012 · Motorized Bicycle Forums. ive moved the c clip around and Apr 1, 2009 · Re: High Idle when engine is warm first turn idle adjustment screw down, then could make mixture screw adjustments then need to synch carbs, if rev and idle stays high for awhile than slowly comes down one or two cylinders are stealing fuel due to vacuum higher in those , thats why must be synched. This results in engines idle increasing or decreasing depending on how tight the idle screw is. Located on the 2-stroke carburetor assembly, this component is tightened into the carburetor. In the next section, I’ll guide you through the necessary steps to ensure a safe and enjoyable ride. The chain on my bike wobbles way too much and skips when the engine is idling. As far as I know, the newer clutches are much better, as I don't have any problems with mine engaging at idle. 1 2 3 Next Sep 16, 2008 · Local time 7:08 AM Joined Aug 11, 2008 Messages 89 Location Cincinnati, Ohio It’s probably more idle tuning than anything, I’ve adjusted mine a bit from 12 full rotations but that’s a good starting ground. Riding a bicycle requires wearing a helmet, and even more so when riding a motorized bike. I havent posted in a while. Idle mix is normally controlled by a pilot jet with an air screw for fine tuning. When you start your motor, let it warm up with the choke on until the idle raises high enough, indicating your engine's cylinder is warm enough to run without it. Nov 8, 2018 · Methinks the clue is your choke telling us your idle mixture with the choke "off" is way too lean. The only way to lower the idle speed then is to pull out on the adjustment screw. Honda service is the worst I could ever imagine. (After runnin a couple blocks) Then idles fine all day. Mar 30, 2009 #1 Sep 9, 2017 · extremeodd pretty much nailed it. Apr 14, 2012 · The bike runs really well when cool and warm, but is noisy (detonation?) at high RPMs and down on power when hot. The carb is a NT speed carburetor Thanks, Carson Nov 30, 2020 · Motorized Bicycles – Gas v Electric; Build the Ultimate Motorized Bicycle. The Q-Matic will work on low idle & low RPM motors [HF, B&S, Honda, etc]as well as High idle & high RPM motors [HS 142 & Honda GHX]. at least until the engine seized. Jan 6, 2011 · Hi guys I got my bike running again after a new top end and also replacing the failed case o-ring in the bottom end (split the cases). Apr 25, 2018 · about a year ago, i built a 2 stroke 49cc kit. With the carburetor and idle speed adjusted, it’s time to test ride your motorized bicycle. With a few basic tools and some know-how, you can transform your ordinary bicycle into a high-speed machine that will turn heads on the road. General Discussion. I've checked through the forums and tried other suggestions such as reseating the slide in the carb, adjusting clutch tension at the motor, but I cannot get it to idle to warm the engine up If your idle is running too high that means your motor’s starving for air, so you’ll want to back your idle screw in to raise the valve. Over the past month or so I start the bike up it runs and idles fine. the NT, is a good all around carb and very Oct 25, 2015 · So I completed building my first motorized bicycle. The engine spins around and has compression. Aug 26, 2012 · So I set the AS at 1. the only thing i cannot figure out is how to lower the idle speed. Gas powered 66cc 80cc 85cc 100cc. And I've been riding it lately at 27 miles per hour on flat and recently installed the fuel filter. If I pull in the clutch lever, Rev the engine 1/2 or 3/4 throttle and then release the Apr 30, 2020 · I found that carbs that have both idle and high speed needle valve adjustments more likely have capability to idle. Bicycle Requirements: This bicycle motor engine kit fits most Mens 24" and larger bicycles which includes mountain, cruiser, chopper and road bikes with a V-frame with at least a 8. After the break-in period, the ratio is increased to 20 parts petrol to 1 part oil(50ml Penrite 2 stroke motor oil to 1 litre of 91 octane Mar 15, 2013 · Like other members have noted, vacuum leaks can definitely cause a high idle. Whenever I am letting the engine idle all of a sudden it will Skyrocket and RPMs and seemed as if it's going to blow the motor to where I have to literally shut the engine down. to tune for 3/4 - Full Throttle, thats the high speed jet Reply Reactions: Frogslayer and Don_Parsons May 5, 2013 · I have a motorized bicycle that idles super high, the further I pull in the clutch, the faster the idle, it sounds like it might blowd up sometimes. The next day I put in some 5 month old gas and it Apr 5, 2017 · Like Street says, idle may be too high. Feb 22, 2024 · Experiencing erratic idle speed on your motorcycle can be both perplexing and frustrating. the only thing that has changed is the engine. then idles down after 2-3 minutes when it gets to operating temp. The idle screw not having an effect is a tell tale sign of a vacuum leak. motorized bicycle (70cc parts) idle pulley/ short there is no need to open a case or leave negative feedback with us, any part you receive from if it does not fit or you don't want it you can return it for sure and get your refund right away ,thank you very much for understanding Dec 20, 2014 · probably on here but I can't find a thread on it. But don't worry, you're not alone in this; many riders face this issue, and there are ways to troubleshoot it. I'm just curious to see if I'm in the realm. Dec 18, 2020 · Motorized Bicycle Forums. Sep 25, 2024. Especially for motorized bikes, its one thing to build an engine, but its a WHOLE different rodeo for tuning one. Starts fine etc Now, after I'm riding it and let off throttle, it stays at a higher idle than normal. bought a new engine last week (80cc), installed it, got it running, but it doesn't run well at all. The first and most common reason a motorcycle idles high is due to the air and idle screw turned too high. Engine starts great-no choke needed. is the clutch disengaging? is the idle set to low? is the fuel mixture( carb setting) to rich? have you swaped out the spark plug and wire? all can afect idle. 10 secs to bring it down to idle and when it comes to idle it shuts off. Oct 14, 2024 · Struggling with high idle issues on your Yamaha motorcycle? This article offers a comprehensive guide to diagnose and fix the problem hassle-free. The one with the spring on it. a tach is nice but not necessary) then you set the Idle Speed to a point before the clutch trys to engage. Also never ever rev up the engine with clutch attached and drum removed! Sep 26, 2022 · Hey guys new to this forum! I recently took up the hobby of building a bike and already have quite a few upgrades (mz pipe, high compression head, kinda-ported cyclinder) Problem is the engine seems to 4 stroke at high rpms and i would like to upgrade to a new carburetor as well. The cable snaps back Jun 27, 2011 · Also once I get it idling nicely, if I try to rev the engine with the clutch disengaged, the RPM's get stuck pretty high and it will not return back to a nice idle (the carb slide is not getting stuck). Mar 1, 2013 · Since some fuel comes up by the needle at idle I decided to lower the needle a couple notches. However, if your bike is revving out, you should shut if off and attempt to resolve the issue or you could blow up the motor. I'd start there. the idle screw doesnt seem to do anything for it. 4 DISCONNECT THE KILL SWITCH. Oct 7, 2014 · That causes a slower rate of combustion which is terrible for high RPM power. So far I have tried all the needle clip positions. Feb 4, 2022 · If you have a high idle (raising it clockwise too much) the bike will sometimes move forward on it's own slowly due to the idle screw being turned in, which in turn will give you a high idle. The problem I noticed is that at slow speeds like 10 to at most 15mph the bike revs at high rpms. What is the max rpm you guys are getting on your 80cc / 66cc motors. to tune 1/4-3/4, thats the slide needle . Apr 22, 2024 · Once the carburetor and idle speed are properly adjusted, your motorized bike’s engine will run smoothly and efficiently. To set, screw the mixture screw in fully then back off 3 whole turns. So after painting that's what I did. My last motor had a problem with the kill switch so I disconnected it and on purpose I set the idle so low that the engine would die soon after letting go of the throttle, If I was stopped at a stop light or stop sine I would just give it a little gas to stop it from dying. I initially thought it was too long and making an unstoppable vaccum at idle, but that was not the case. And it will idle for 5 or 10 seconds once warm but always falls on its face. so far so good. Apr 23, 2020 · Motorized Bicycle Forums. This is a potential source of trouble since the kill switch is only required to stop the engine not to start the engine. Mainly, the bike won’t idle cold, it will hang up at high idle when coming down from speed, and the fuel econ will be 25-40% lower. already. When I removed the carb I just let it hang on the back of the frame (like the vids showed on Rocky Mountain ATV). For more information about motorized bicycles visit us at http:/www. It's like your bike's got a mind of its own, revving up or dropping RPMs without any input from you. One time they replaced CARB then they said they do not know what is causing the problem but they will not fix it because it is not designed for the bike (so I decided not to deal with idiots anymore). 4-1/2 turns out is just a general starting point each engine will be different. The motorized bike racing carb is made of high quality alloy, which is durable, stable performance and high reliability, wear-resistant and has a long service life. There are many misconceptions about idle speed, etc, but the entire job of the idle is to slightly crack open the throttle in order to keep the engine running. 71 Aug 13, 2009 · Motorized Bicycle Forums. In the meantime starting may be a little difficult, the performance sluggish and the bike may need a little help to idlelike yours is doing. I find this abnormal because my other "raw 80cc" engine idles fine with the screw roughly half way in or so. Upgraded fastest racing engines, kits, and replacement tuning CNC parts. 2-Stroke Engines Idle info. Photo: BikeBerry (Facebook) Nothing ruins a leisurely ride on your motorized bike like excess engine vibration. Seals are fine. 2-Stroke Engines. You should not use the adjustment at the top of carby for idle adjustment. . Bearing in mind this is my first build, it's fully stock. i use RT or NT carbs, unless it's a race bike, but thts another story. Jun 24, 2024 · Really high idle fix. May 4, 2012 · It's also possible you have a defective clutch. I have 70 jet and my c clip is on highest. Motor bogs down under load and 1/2-Full throttle. Soon the clutch pads will wear a little and you will get use to holding the bike, like a horse. It is a howel motor 48cc or 50 or whatever. My motorized bike is idling high? Aug 20, 2008 · high idle. It is found on your carburetor that you are able to turn and adjust and is a tool that will raise and lower the throttle. If your engine runs, you need to learn how to set the idle. Flat ground in South Apr 20, 2008 · Idle adjustment help needed I just got my so-called 80cc mounted and took the bike for a quick ride up and down the street. Apr 3, 2010 · My motorized mountain bike idles VERY high like its going to blow up when I idle. Jun 8, 2019 · Yeah I was hoping somebody out there could please tell me what could be wrong with the idle on my 2-stroke 80cc motor. Not only is it annoying when your motorized engine vibrates at an unreasonable level, but it can also cause riders pain and potential damage to the bike itself. Thread starter wan37; Start date Dec 18, 2020; wan37 Well-Known Member. The other cause for a high idle is an air leak. View. The screw on the side of the 80cc high performance carburetor is for the idle. I have a motorized bike that runs perfect except when I slow down and disengage the engine. If bike still moves slightly, just hold the bike firmly. Oct 6, 2024 · The best idea I had was to put the exhaust on the bike and just let it idle for 1h. Nov 24, 2015 · Base gasket is putting out a lot of oil and it seems to idle better with choke on 1/2 way but it still won't idle low enough to be sensible, odered a base gasket for another bike but I could steal it for this one since its been ported and runs better (usually) Tuning the Carburetor. Been A lil busy to do much yet even ride. I'd look at some simple stuff first, like the spark plug - which might fire OK at idle, but misfires under throttle? Nov 25, 2006 · How do I adjust the idle. 90% my bike idle. With a motorized bicycle carburetor adjustment, from a 49cc to 80cc carburetor adjustment, you can fly with ease. This has nothing to do with the main jet. Local time 4:08 AM Joined May 15, 2024 · Picture the excitement of cruising down the street on your own personalized motorized bike. After adjusting the idle mixture to the highest rpm ( you can listen to this. When you let go of the clutch, the back wheel connects to the motor. It is also basically non-adjustable except for the needle height which affects mostly mid range power. but for the last week i have been and i am looking for some feedback on what i have experienced. com's Technician, Jonny explains how to adjust and tune your 66cc, 80cc, or 48cc bicycle engine NT carbu Oct 4, 2016 · I put a better high performance spark plug in it and now it runs better than ever starts right up just having a a problem with it holding an idle I've adjusted card needle and idle screw and the adjuster to the throttle and still won't hold an idle and also I keep breaking bolts I've even bought new higher strength ones and they still break off in engine anyways I can prevent that Apr 19, 2019 · hey guys, so my first build i ran it and the engine idled flawlessly. Apart from that engine runs great I tried 60,65 and now 70 jet and it Jan 25, 2024 · Hey g2 "expert" here. With . I've tried adjusting the throttle cable and the idle adjustment screw. Apr 30, 2016 · bike runs fine. Every time I want to idle, the coaster brake overheats because the revs seem to be too high, even with the throttle completely closed. My bike never seems to like the choke on for long, no matter the temp. Thread High Idle. Thread starter Rockjaw; Start date Jun 12, 2014; Rockjaw Member. The slightest air leak would upset idle mixture and cause stalling or high idle speed that cannot be adjusted with the throttle stop screw. Here are list of symptoms for my new build: 1. The idle was out of control when hot. Turn idle down. Dec 18, 2017 · New kit (Ghost Rider from Kings), motor starts and idles fine, runs ok at 1/4 throttle on level ground (part load), but cuts out and lugs and chugs when asking for power above 1/4 throttle. There is also no idle - the engine is so weak as soon as I stop pedaling, the motor completely dies. Iv been fiddling with the idle screw turning it Feb 21, 2007 · During the first 500km break-in period, the ratio for engine is 16 parts petrol to 1 part high-grade 2 stroke motorcycle oil (65ml Penrite 2 stroke motor oil to 1 litre of 91 octane unleaded petrol). Jul 1, 2018 · Crassius is correct. A few days ago I installed a high flow air filter, NGK plug and an inline fuel filter (from Sick Bike Parts), took it for a testdrive and all was well. 5" height clearance for the engine. I end up just chasing the idle speed Information about a two-stroke motorized bicycle carburetor and idle settings. If i pull the clutch while its running i have to keep giving it gas to keep icvlt1t going. Jul 9, 2008 · All the idle screw does is hold the slide slighty open for idle, the farther in the higher the slide, the higher the idle. At the trottle grip or at the Carb. The bike did not start on that day. When I leave the clutch it’s always trying to go like a car placed in “drive”. Oct 11, 2009 · Hey everybody! I bought a 2 stroke 80cc engine and I have rode it for about 67 miles and changed the gas ratio from 16:1 to 20:1 after 25 miles. Larger frame size requires drilling into The 2-Stroke Speed Carburetor adds a boost of power to nearly all 2-stroke 48cc and 66/80cc motorized bicycle engine kits. I do have an offset intake due to my bike frame. Not to be confused with an idle speed adjusting screw. 1; 2; First Prev Motorized Bicycle Forums. 2-Stroke Engines Aug 22, 2021 · Modding my Newedge Mustang! just to have a HUGE ISSUE COME UP MOTOR BLOWN?? - https://youtu. The engine just stops instead of staying idle like it should. That's to say, don't start from a dead stop too often. Any suggestions would be greatly appreciated! Thanks, plato- May 9, 2016 · Hey guys, i just bought a motorized bike off of my boss, he doesnt use it anymore and it runs great, only problem i have come across is it wont idle. My bike with a stuffed reed almost never stalls. This can lead to carbon deposit on the seat and reducing the fill and exhaust of gasses. Apr 14, 2015 · After letting it sit for a couple days i start it up, the idle was acting weird so I tried adjusting it, giving the throttle a blip it responded quickly and went back to idle, just as it reached idle the engine seemed to rev back at me, staying at a higher rpm then the idle was set to for a while and then going back down. Apparently this is also somehow a sign of vacuum leak. 2-Stroke Engines the engine will idle REAL high and you will have zero throttle response when you twist the throttle. Moving the clip up leans or decreases the ratio of fuel If the engine idles fine, it pretty much eliminates the possibility of an "air leak". Must hold slight throttle and feather choke to keep engine running 3. Assuming the engine sucks in air, the RPM should change when spraying on the leak. Short and easy clip on how to adjust the needle clip on your motorized bicycle engine NT Carburetor. Who doesn't love flying down the road on a motorized bike- the wind in your hair, the rush of adrenaline as you pull on the throttle Sep 3, 2002 · I have an 81 shovel (80in all stock motor) and have had various problems that I have managed to fix myself. Incorrect adjustment will cause overheating, seizure and possibly a hole in your piston. The not idling might just be that you need to tighten the idle screw on the carburetor turn it in most of the way get it started and turn it down until it's running smoothly at lowest idle you can get and the sounds I'm assuming are an air leak you can test that by spraying carp cleaner or starter fluid at all the seals while it's running if the idle changes when you spray that area that's May 20, 2021 · Hi, I didnt drove my bike in a while and meanwhile took it apart. Also, when I apply the clutch, the revs go really high and I am worried about damaging the motor. with heavy hitting or heavy riding bikes i go with more oil 24:1-28:1, maybe 30:1. Engine will rev with throttle, but is rough at times (because it is Dec 3, 2017 · Even when the clutch is locked at half, it won't idle at a full stop just to warm up the engine. 2024 PHATMOTO™ Rover - 79cc 4 Stroke 7-Speed is the only Motorized Bicycle that integrates both Add to cart. When it cools down I'm going to run some rtv over any seem that might have a air leak. Jun 21, 2014 · Really high idle fix Yountz; Sep 12, 2024; 2-Stroke Engines; 2. Seems like it could be a high idle setting issue, but I can't see any adjustment screws on the carb. The problem is the only way I can control the RMP's at all is by choking the engine. It normally comes down to velocity. Introduce Yourself S Feb 21, 2008 · The Q-Matic drive can be custom tuned for low end torque, or more top end, and the EZM version of the MaxTorque clutch can also be tuned for various idle & top end RPMs. Default depends on my bike and how i ride. Disclaimer: - Operating this motorized bicycle or bicycle engine kit involves some risk of serious bodily injury . This isn’t anything to worry about. Apr 21, 2024 · Discover the solution by constructing a motorized bicycle using a weedeater engine. Oct 19, 2010 · Hello, been a lurker on here for a bit, Im having a problem with a sputter at high RPM. Before i installed the kit it seemed to perform better. It seems to do it mainly if I give it give it a little gas when idling. also, there is a little metal thing that looks like a primer from a gun next to it like a little button Jul 28, 2009 · thanks for the info guys ive done all of these i actually have at least 4000 miles on my bike its my main transpo the oil mix is 30:1 and that seems to be fine it just started to not hold an idle after two weeks of riding in the rAin i got the carb washer from dax and ive gotten new gaskets fron dax also ive siliconed the throttle cable down just to make sure there were no air leaks i think Feb 28, 2021 · Having a engine that Idles is way over rated, As long as it stay's running when you give it gas is all you really need. These motorcycles tend to start with a naturally-high idle speed when you first start them to get the engine hot quickly. Cap off stock pipe helps power some, but a 2stroke needs a chamber for proper scavenging and control of the AF mixture - a properly sized pipe for your motor will not only help make power, but extend your RPM range. Forums Log in The clutch must be held in when the bike is in motion or the motor will keep running. Trying to "fix things" that aren't really broke during the break in period typically makes things worse. Runs and idles good and revs up fine with no load on it. Now I have high idle and it takes aprox. Nov 13, 2016 · Idle screw on my High Performance Carb is screwed all the way in. 6 miles an hour. ran excellent, no problems. Apr 12, 2015 · hi everybody. Riding at “idle” speed is when you are rolling down the street and the motor is at idle. bikeberry. The video features step-by-step instructions for diagn Jun 12, 2014 · Motorized Bicycle Forums. Feb 3, 2013 · The bike also sounds "rough" Here is a link to a you tube video of the bike with the motor running. Many 2-stroke and 4-stroke motorized bikes have About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Jun 22, 2020 · this is all for idle and slightly off idle . If, on the other hand, your idle runs too low , turning the screw out will lower the slide and restrict the amount of air coming in to help the cylinder reach the temperatures it needs. Reply. Discover essential tools, step-by-step instructions on inspecting the throttle cable, checking for vacuum leaks, and adjusting the idle speed. It also takes longer to respond to the throttle when you pull it. That worked and it started, but was too lean at mid range speed (since cracking the throttle open at medium speed caused it to die), and way too rich at high speed. I’m mostly just using it for work since it’s only 3 miles away. My 2 stroke starts every time and runs ok once warmed up but as it gets warmed up the idle stays really high. Understanding why your motorcycle's idle speed is unstable is key to getting back to smooth ridin Jun 19, 2023 · At the moment my bike won't idle and I think it has something to do with the DIO reed valve I have on the engine. you should be able to get it to idle at acmplete stop with this adjustment screw. Jan 24, 2011 · Another post on bogging issues with the 2010 CNS V2 carb. now if the idle hangs and never winds down, you got air getting in somewhere or you are to lean on your jetting( barring anything mechanical). IMO the pwk21 Apr 20, 2011 · Both conditions are tuneable by adjusting the slide needle clip position, fuel jet, idle mixture screw (If carb is equipped with one. 【HIGH QUALITY MOTORIZED BIKE CARBURETOR】- Racing carburetor is a good motorcycle accessory. Supporting symptoms when the engine is hot are a high, lumpy idle when pulling in the clutch, and the kill switch doesn't stop the motor (which it normally does no problem). Get a 12$ g2 stuffer and trim alittle then pop it in. This is a screw that is designed to keep the throttle plate from closing completely. On the HuaSheng motor the idle mixture screw is a fuel adjustment, not an air adjustment. Apr 26, 2009 · I've read dozens of threads, but I still feel stumped. I am May 16, 2010 · hello, i just added the new speed carb. 5 (normally about 2 out) and back the idle down about 1/4 turn before I start it, knowing it's going to idle high. ALL the way in, cannot go any farther and backing it out more than 1. They're my favorite reed I currently have 4 and run almost every motor with them. Also, what is up with that screw on the carb. By utilizing the correct tools, materials, and some basic knowledge, you have the ability to transform a standard bicycle into a high-powered and effective means of transportation. One of the most asked questions that I have seen is HOW someone would go about tuning the carburetor, picking out one, and getting your engine running in tip-top shape. Nov 18, 2021 · Very common issue most have with new builds! Vacuum air leaks on manifolds and carbs! here is the two spots and why most leak! Very easy to fix each hope it Oct 13, 2020 · Motor is a YD100 everyrhing on it is stock I built it on the huffy nel lusso great setup by the way ,anyhow I've come across a issue I cant figure out why but when I pull in the clutch to make bike go into idle my engine revs really really high i have check for air leaks in the intake and exhaust also I have tried screwing and unscrewing the Jan 3, 2021 · On the Zeda 100 when I release the throttle with clutch pulled in the idle stays very high and takes a long time to lower. If your idle is running too high, that means your motor’s starving for air, so you’ll want to back your idle screw in to raise the valve. Sep 12, 2024 · I've had a problem with my new 80cc motor that I've never had here. Get ready to leave gas stations in your rearview mirror with our Assembled 80cc 2 stroke motorized bicycles, getting over 100 MPG and blazing past traffic at 30+MPH with our upgraded performance motors. Remember: motorized bikes are fun, but a ride to the hospital is not. The idle set screw is all but completely backed out right now. Before riding, make sure to warm up your motorized bike for at least one to two minutes. I sprayed everywhere for air leak, tightened head bolts, intake bolts. Before I could start the bike easily at 10 - 15 Jun 28, 2008 · the screw on the side of the carb is the idle speed adjustment to increase idle speed turn it clock wise. 1; 2; 3; Next. smoother idle, 2 Stroke Motorized Bicycle Tuning Center; High Compression Heads for 2 Stroke Mar 2, 2021 · The horizontal screw that rotates the throttle shaft is the IDLE SPEED ADJUSTMENT. It only runs fast at idle when the engine is warmed up though. I've not gotten to sealing my carb to my intake manifold and it idles extremely high because of this. BBR Tuning 26 Inch Heavy Duty 10 Spoke STAR Motorized Bike Mag Wheel Set. 72mm fuel jets (larger than the stock NT carburetor that comes with most bike engine kits), more fuel and air are able to enter the carburetor, resulting in higher speeds. no longer unscrewed nearly all the way still having a high idle. Checked for air leaks etc. I felt this was important enough to share for anyone looking up this specific or similar issue. Motorized Bicycle Forums. May 19, 2020 · The motor engages but there is absolutely no power whatsoever. 70 cc Flying horse beach cruiser build, stock nt carb, etc. I was able to get the bike to idle by turning the idle screw all the way in - however, when I did this the engine was idling way too high. while riding will the clutch disengage, are you able to pull the clutch lever and rev the motor? if so the clutch is disenaging, other probs. Some carbs from lawn mowers don't need to idle slow, so they many mowers do not have the 1750 rpm slowness necessary to not pull on many centrifugal clutches. Oct 19, 2023 · If your bike won’t idle without revving the throttle while starting the bike, use your choke! The choke is a device that limits air from entering the carburetor, creating a more fuel-rich mixture that helps your bike through rough starts (especially during cold weather). Nominal setting on an air screw, and I hope you have one, is 1 1/2 turns out. Any ideas? Thanks guys! Large Frame Adapter Bracket and Hardware (For Larger Tube Bikes) Gear Puller/Engine Tool; Extra Parts: Head Gasket, High Voltage Cap, Idle Screw, Master Link, Front Motor Bracket, Longer Bracket Studs . easy riding with little beating, 32:1-50-1 ( with the proper oil, some can be run at 50:1, some shouldn't be). If idle is high, bike will move like impatient horses. The bike will not remain stationary and idle with the clutch out, it has to be moving. The bike then revs like crazy, and the idle speed and or RPMs sit very very high. Mar 30, 2009 · Local time 3:13 AM Joined Feb 19, 2008 Messages 74. These seem to be my two options; choke always on or dangerously high idle (idle screw doesn't help). long intakes help torque and low end, short intakes help high rpm power. The bike fires up fine and idles well, it just lost its top end somehow. I Apr 13, 2009 · Same problem. I'm reading 9800 rpms at 40. Aug 25, 2023 · Buy Shkalacar 2 Stroke Racing Carburetor Carb Air Filter Kit for 49cc 50cc 66cc 80cc 100cc Motorized Bike Parts Engine Kit, Motorized Bicycle Parts for Moto Bike Bicycle Scooter Moped Dirt Bike: Carburetors - Amazon. Changing the idle will make your engine smoother and will keep it from idling high with the clutch pulled. HumanPerson Well Sep 15, 2021 · On fuel-injected bikes, don’t worry if the idle speed seems kind of high when you first start the bike. I've been cranking the idle button down to no avail. Any ideas would be appreciated. I was stuck doing 10-15 on some steeps. This increased throttle response and acceleration. If you are more unluc Oct 3, 2018 · When I ride my 80cc motorised bike and pull the clutch in it revs so high also when I put the chock down to kill the bike it keeps running and I have put on a new http://www. com — In this video, BikeBerry. a quick overview of how I set up my motorized bike carb the first time I go to start the engine. The first step in building your motorized bicycle is selecting the right weedeater motor. Will get a replacement bolt soon and apply some sealent to this area before closing up. I actually can't fully disengage the choke because when I do the motor run's full speed. Turning the idle jet (not fuel air) does absolutely nothing either way, and it can literally come out of the carb while the bike is running, and it still idles high. High performance motorized bike kit engines. When I pull the clutch the RPMS shoot sky high. Jan 10, 2009 · hey guys just some info to get you started. General Discussion . be/6oV04xw8EeI426 Views - Sep 19, 2023 ||||| 151% ||||| 1. com FREE DELIVERY possible on eligible purchases Nov 6, 2020 · As suggested by one of our viewers @Rowan Pritchard, we bypassed the power jet on the pwk 21. Jul 5, 2019 · When I kick the bike over, it starts with the first or second kick. The mixture screw adjusts the airfuel mix, and is different to the idle screw. I came across another post about another guy having the same problem, but it was no help because it turned into a fighting match between two guys arguing about drilling a piece out of a carb of something. yipl zwui bqebhvx qxgmopt lfic niikwbp apdwv bjr zqkh bdx