Question about 2010 Hyosung GT 250

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Bikes idle drops after about 20mins of riding will stall if i do not blip the throttle

The problem started when it was knocked over in a carpark

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My bike has a sensor called something like "bank angle sensor" May just need resetting or replacing as it activates if the bike is dropped on its side.......I think, as I don't want to find out. Good luck.

Posted on May 08, 2015


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1 Answer


sounds like fuel problem ! what bike have you got and is it carb or injectors , is it elec fuel pump or gravity fed and how old is the fuel in the tank ?

Mar 17, 2014 | Triumph 955i Speed triple Motorcycles

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Bike jumps when on release of clutch in first gear and stalls

The clutch plates are probably rusted. I ride the bike with the clutch lever pulled in until very warmed up and keep blipping the throttle at low speeds in first gear this sometimes releases the stuck clutch.

Jan 12, 2014 | Motorcycles

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My 2008 Kawasaki ZX6R is having some stalling issues at low revs and stuttering issues while in motion. The bike has a power commander V, has been tuned on dyno, has k

firstly thankyou for adding a video allways helps

can u tell me how the bike performs in all revs ?

you say it has been dynoed how long ago ? have you made any changes since ? was it working fine when it left or has it been like it since u got it back from them ?

does it lack power taking off ?

first thoughts its almost certenly the carbs if not possibly a problem with the powercomander but id say 99% sure its carbs but if you took it to pros they shuld have set it all up right

what do it think it could be im thinking sounds like fuel mix problems low end maybe pilot ajustment needed possibly carb sync problem but all should of been addressed at the dyno center

can i also ask how long ago it was dynoed ?

as for something usefull for now here is a little rule for thigureing out air fuel mixes at low rpm and as a genral rule for setting up any stage of the carb idle mid and high rpm

        • NOTE: A rich problem gets worse as the engine heats up.
          • If the throttle is lightly "blipped" at idle, and the rpm drops below the set idle speed, then rises up to the set idle speed, the low speed mixture screws are probably set too rich: try 1/2 turn in, to lean the idle mixture.
        • NOTE: A lean problem gets better as the engine heats up.
          • If the throttle is lightly "blipped" at idle, and the rpm "hangs up" before dropping to the set idle speed, and there are no intake leaks and the idle speed is set at less than 1000 rpm, the mixture screws are probably too lean: try 1/2 turn out, to richen mixture. Be sure there are no intake leaks and the idle speed is set at less than 1000 rpm!

Dec 05, 2012 | Motorcycles

1 Answer

I have a 2005 harley davidson sportster xl 1200 custom. after bike is at normal operating temp.when i stop for redlight or stop sign, bike idles to fast.i can let out on clutch little bit and it will slow...

If the carb is adjusted correctly, the engine will not idle without the choke when cold. I will usually take at least 3 to 5 miles of riding to get the engine warm enough to idle by itself without the choke. If your bike is a full operating temperature, it should idle at about 1000 RPM. If it's idling higher than this, you need to slow it down a bit.

Remove the air filter cover and look at the top right side of the carb. You'll see a screw there . This is the throttle stop screw. Turn the screw counterclockwise to lower the idle speed to 1000 RPM or so. Blip the throttle and let it settle back to idle. Reset it if necessary. Once set, put the air cleaner cover hand on.

Mar 14, 2011 | 2005 Harley Davidson XL 1200 C Sportster...

1 Answer

When I first start my 99 electra glide classic, it idles at about 1k. If I then blip the throttle, the idle drops to about 400 rpm. It remains there until I ride for about 20 minutes. Then it stays at...

If your bike is fuel injected, this is typical. What is happening is the fast idle is keeping your engine running until you blip the trottle. When you do this, the fast idle relaeses the idle speed control. Once the engine gets to full operating temp, the idle speed is correct.

Good Luck

Oct 26, 2010 | 2001 Harley Davidson FLHTCUI Electra Glide...

1 Answer

Drives great but at/when drops to idle it stalls

When you are on the bike and riding do you still have the choke out? And stop spraying starter fluid into the carbs..bad bad bad.... bikes start with out that stuff and if you need it then something is wrong.. your gonna mess something up doing that....let me know about the choke and we will go from

Jun 21, 2009 | 1990 Suzuki GSX 750 F (Katana)

2 Answers

I got a 1990 Suzuki GSX750F Katana, the problem is that when I pull the choke out and start it up it will idle, now if I take right off it rides great, but when I come to a stop or hold the clutch long...

It still sounds like it still running rich. If it doesn't have any performance mods like aftermarket exhaust it wont like the stage 3 kit. The stage 3 kit should be install if it has high performance exhaust and k&n pods instead of an airbox and filter. Or the floats may be stuck or improperly adjusted.

Jun 21, 2009 | 1997 BMW R 80 R

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83 suziki GS450 idle issues

Sorry to hear you've been looking for an answer for so long, I just stumbled on the post. Sounds like a problem I once had on an '83 Honda Magna. This was the 1100cc version but I think the carb set up was the same. There are 2 parts that are suspect from the symptoms that you're describing. One is the rubber tube that connects the carbs to the block. These tend to dry rot and crack over the years hence letting in air and messing with your mixture as it enters the cylinder. The second thing to look at is the rubber diaphragm in the top of the carb. Should just be 4 screws that hold on the top plate and under is a gasket with the idle pin underneath. Again this tends to crack on these old bikes and cause problems. I suggest you buy these parts new though, used ones are likely to have the same problem.

Good Luck

Apr 26, 2009 | Suzuki RM 250 Motorcycles

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