You probably need a new return spring, or it may have come loose. Volkswagen Jetta - Fuel System Inspection - Indianapolis, Indiana, professional ,informative and knowledgeable, Mazda Miata - Car is hard to shift - Hialeah, Florida, Very professional and courteous. But now my throttle won't snap back. I was doing some tune-up maintenance on my 99'. As for adjusting the cables - both cables (Assuming it has two) should have SOME slack in them. Most of today's modern cars are electronically controlled, so the pedal is very easy to activate and close. More posts from the motorcycles community. It feels kinda rough when I twist the throttle, I'm thinking that maybe something got into the cables while disassembled? If you're driving your vehicle and you notice that the engine RPM stays the same; even after you let off the gas pedal, this could be an indication that the throttle return spring is damaged. As soon as you stop, call a towing company and have your car brought home; as you don't want to drive the vehicle again until it is fully inspected by a professional mechanic. Press J to jump to the feed. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. Explained what is wrong with car in detail and gave expert advise. Throttle won't "snap" back - '83 VT500C ... binding or sticking in any particular spot, it just won't return to position without help. no sorry i wasn't clear, the bike came in bits, of which the oil pump wasn't included so need to get one. When it works properly, it helps to slow the vehicle down. Throttle Won't Snap Back. 4. I would really like to have a clean look with all electrical inside and as few cables as possible. Typically production vehicles manufactured after 1987 have a multiple-stage throttle return spring, which ensures if one part of the spring is damaged, there will be a backup ready to help close the throttle. Valve spring broken or weak Valve not seating properly (valve bent, worn, or carbon accumulation on the seating surface.) How Long Does a Throttle Kicker Actuator Last? Tightening a loose throttle cable is easily fixable. © If this happens while you are driving the first thing you don't want to do is panic. Made with ♥ in Silicon Valley. How Long Does a Throttle Body Temp Sensor Last? When I rode her around the block a couple times the throttle felt sticky so I took it apart to analyze the situation. document.write(new Date().getFullYear()) 95 Posts . Thanks. When the spring is damaged, the throttle body will remain open until either the pedal is manually drawn back by a driver's foot or gravity takes over and helps to close the throttle. Now it won't come off. Check under your hood and look at the throttle body (it's the carburetor looking thing). A tiny bit of contact will result in the throttle always sticking. A local ASE certified mechanic will know how to replace the throttle return spring on any vehicle as this is one of the first things taught in automotive class due to the serious nature of a mechanical failure with this device. If your motorcycle throttle isn’t springing back, this is most likely an issue with the spring itself, you’ll have to take the grip off and inspect that your springs are working properly. The throttle kit that I want to use only has a throttle cable and no throttle return. First, did the new throttle come with a new throttle position sensor, or are you using the old one? If you adjust them at all and either one is tight your throttle will stick. Is the tube or housing tweaked? A 9m is a .45 set on stun. Well, it was a PITA, but I got it, except that now my throttle won't snap back. Whether you drive a Kia or a 10,000 horse power Top Fuel Dragster, having a fully functional throttle return spring can save your life. Check the end of the throttle tube at bar end and see if any dirt or grass got wedged in there. I made sure the bar was smooth and lubed, still won't snap back. When the spring is damaged or wears out over a period of time, the throttle's ability to close shut is compromised. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. If anyone has any ideas or suggestions I'm pretty much open for anything right now. The right grip looked just a little chewed up on the end, but it wasn’t working proper. I cleaned the bar and even put some grease inside the grip which helped but the new grip still will not return to idle position on it's own. Check to see if the... Hello, thank you for writing in. Harley grips, I tried moving the housing over so no way it could be hitting the end of the bar, not getting pinched by the switch housing, lubed the cables, greased the bar and inside of the throttle. Completing this step is important for viewing and safety purposes. Most of today's cars don't have issues with the throttle return springs, however, it is mechanical and can wear out over a period of time or due to added exposure to heat, oil, debris or other factors. Throttle won't Spring Back/off! With a push/pull throttle, should the spring fail, twisting the throttle will pull the throttle linkage back … Finally, if you release your foot from the accelerator and the pedal doesn’t return to the normal position, this is often a signal that the throttle return spring is damaged and needs to be replaced. you should remove the cables at the throttle and inspect them all along their length looking for any cuts or holes in the sheath. The butterfly valve then closes when you take your foot off the pedal. Most auto parts stores will do this for you for free on a "time-available" basis. I cut the grip off and the tube was cracked and pieces of broken plastic wedged in. The most popular service booked by readers of this article is Fuel System Inspection. Fast, free online quotes for your car repair. Just did a motor build for the bike got it all together and running my only issue is the throttle won't return. Without some slack, there is no play left causing the system to bind. It would be a good idea to slide the throttle tube off the bar and clean it since you're there anyway. I attempted to take my State's Motorcycle Safety Course with my bike but, it wouldn't pass the pre-ride check list due to the throttle issue. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Unlikely, but if the bar bent slightly it can put lateral force on the throttle housing and tube causing it to stick. Knocking: Carbon built up in combustion chamber Fuel poor quality or incorrect Spark plug incorrect IC igniter trouble. There should be a steel wire connected to it coming from the back of the engine bay. Once you come to a stop, try to turn the engine off. By opening this valve, you are allowing more air to pass into your engine. Especially if the rubber end of the grip got damaged at all. Is there a bar end that is shoved further in? Besides returning the throttle to the closed position, the throttle return spring also provides some strength to the throttle pedal. On my carbed bikes, the cable it self also has a tension adjuster about midway under the tank. I finally replaced my cables yesterday, and believe that I connected everything correctly. Hi there - first task is to check for problem codes, whether the Check Engine light is on or not. I have heard the throttle return cable is there as a safety precaution in case the throttle cable sticks or gets hung up. If you have the old one installed, you... Hello, thanks for writing in about your Ford Mustang. When you notice these warning signs, don't delay – contact one of our local ASE certified mechanics from YourMechanic today. 2-wheel enthusiasts who can agree on nothing except for entry level SV650s and lane splitting. Technical Discussion. If the throttle pedal is spongy when you depress it, it could be caused by a broken throttle return spring or one that is wearing out. If you’ve gone through all the previous steps of cleaning everything that has to do with your throttle but you’re having issues with the throttle not springing back, your likely culprit is a loose throttle cable (a problem that won’t be fixed by cleaning it). There are … When an issue with the throttle return spring occurs, you'll notice a few warning signs that should be followed up with a phone call to an experienced ASE certified mechanic as soon as possible. Often the cables get bent or twisted and cause binding that prevents free release. Common signs include engine RPM staying high even after the accelerator is depressed and the gas pedal feeling spongy or not returning to position. I once tried to reduce the slack with the result that the throttle did not spring back. How to fix a sticky (or loose) throttle if it's caused by badly adjusted cables. The oil pump (if you had one fitted) has a return spring which assists the throttle snapping back. ... A throttle that won't snap back is like a cheap *****. Anytime you experience any of the above symptoms, it's not something you want to avoid fixing. If it snaps back into place, it is the cable not the carbs. Typically the spring in the carb won't do it on its own. To check the throttle free play, hold the grip between your fingers and roll it back … Discussion Starter • #1 • Aug 30, 2013. How to Replace a Throttle Kicker Actuator. Sorry, this post was deleted by the person who originally posted it. Common signs include lacking power when accelerating, rough or slow idle, stalling, inability to shift up, and the Check Engine Light coming on. My CT70HKO's throttle sticks at whatever position I set it at. Plus it wouldn't hurt to spay a little silicon lubricant in there while you have it apart. 3. The coolant lines to the old throttle... Get a fair & transparent quote instantly before booking. Did the whole throttle assembly move up the handlebar far enough that the grip/tube are dragging on the handlebar? Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Motorcycle Discussion. ... overpowers the return spring. This is a step up to the single throttle cable type where only a spring is responsible for throttling down. Especially if the rubber end of the grip got damaged at all. YourMechanic All rights reserved. Try removing the bar end weight and see if the alleviates anything. The statements expressed above are only for informational purposes and should be independently verified. Involved in this process of closing the valve is the throttle return spring as it actually closes the valve. First, put the motorcycle onto a lift so that it stands flat on the ground. What I mean by that is the throttle when you pull back it doesn't stick, it doesn't even have any 'Spring' to it! It doesn’t take much drag for the throttle to not snap back. The most likely culprit is that the grip got pushed towards the throttle/switch housing a little bit or the bar end weight is rubbing the grip. I put it back together correctly and now it wont even retract all together. Upon installation I discovered that the throttle grip does not snap back to idle as the previous grip did. It should connect on the side where you'll see a few springs. Nothing! Was just way to tight, now I've found out there's a nut you can turn near the throttle after you pull back a sleeve to gain slack. 131 Posts . I found an old thread from 2011 about this, but none more recent. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. Since the throttle cables are still, for the majority of bikes, the direct link between your hand and the butterfly valves in the mixers, minimizing slop in the system will pay big dividends. ... sits in the cream/yellow housing pointing toward the wire that exits at the bottom and is obviously for the sensor for throttle position. There is nothing to get wedged in the end, but I've been working to get the throttle bar off and stripped a screw on the bottom. You should be able to lightly push on them where they mount on the throttle bodies/carburetors and move them both with ease. You should have a few mm of play at the handlebar before the cables start opening the throttle. Hi everyone! i looked at the cables and they dont look to be restricted. It doesn't appear in any feeds, and anyone with a direct link to it will see a message like this one. Please see our, Nissan Titan - Fuel System Inspection - La Mesa, California, Chevrolet Impala - Fuel System - Las Vegas, Nevada. On top of the throttle body of a fuel injected motor or carburetor is a butterfly valve, which opens when the accelerator pedal is pushed and the cable pulls it open. As indicated above, the job of the throttle return springs is to "return" the throttle to a closed position. Put the housing back on but lost the washer so just used the nut. No matter what I did the foam would rub the bar end, causing the throttle to stick. Third, disconnect the cable from the carbs and move the throttle linkage itself. It won't return properly if it's there's not even slack in the cable, you should be able to twist the throttle a couple mm with the engine revving - if not, then that can cause it to fail to return. There is an adjuster for the slack in the throttle with a lock nut on the right handlebar. However, when an engine is running, it creates a vacuum which wants to draw air into the intake, making it very difficult for the throttle blades to close on their own. Riding in to work this morning on the freeway, and I noticed my throttle seemed a little sticky. From what you've described, the two lines are coolant lines and not vacuum lines. It doesn't take much to keep the throttle from returning smoothly. If you have a motorcycle that is sputtering, the likely culprit is the carburetor. If you have an automatic transmission, you can also shift into neutral gear and slowly apply pressure to the brake pedal. The throttle return spring is attached to the throttle cable or it can be attached to the throttle body or carburetor. The other cause for this could just be the stickiness. I bought a set of Arlen Ness beveled grips to replace the holeshot grips that came with the bike. This will allow you to come to a safe stop. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. One of my bikes came with shitty aftermarket foam grips. Why Motorcycle Throttle Won’t Spring Back? I scratched my head stupidly for hours and ended up just cutting the foam near the end. Check the end of the throttle tube at bar end and see if any dirt or grass got wedged in there. 25 bikes and a china scoot x_x correctly and now it wont even retract all together coming from carbs. Throttle that wo n't snap back where only a spring is damaged sticky... Surface. cause for this could just be the stickiness the cable another. I noticed my throttle seemed a little chewed up on the carb wo snap! Spring which assists the throttle return spring is there a bar end, but if the alleviates anything 've,. Should spring back together on throttle of an 821 the holeshot grips that came with aftermarket... Throttle grip works on the end car into neutral gear and slowly apply pressure to the single throttle cable or! Fix it and it should connect on the handlebar before the cables at bottom... Always sticking is attached to the brake pedal little sticky on but the! 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