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Hey Ive been having some problems with my new bike. When the engine is still kinda cool if i drop RPM to fast it stalls. I tried uping my idle speed but that didnt help. I live in Korea and my Korean is not that good so its hard to explain to the guys at the shop my problem and since its warmed up by the time i get there they cant see first hand what is wrong. HELP!!!!

What make/model is your bike?

Its a 98 Hyosong Yamuda. I dont think they sell them in the US.

spark plug problem, exhaust backup, fuel line problems are what im thinking. But i really dont know

morgan3000 wrote:I tried uping my idle speed but that didnt help.

What exactly happens when you up the idle?

the idle is higher. when im stopped. But it still stalls when the RPMs drop when im riding. ie If im at 2000 and stop its ok. But if im around 5000 and start to slpw down or hit the clutch it just dies.

Im headed to bed. thanks for all your interest in my problem. if you have any advice for me post it and ill check tomorrow. Thanks.

Morgan

Possible clogged carb??

morgan3000 wrote: I live in Korea and my Korean is not that good so its hard to explain to the guys at the shop my problem and since its warmed up by the time i get there they cant see first hand what is wrong. HELP!!!!

Are you saying it doesn't do this when the bike is warmed up? I'd have to say let it warm up a little longer. Many bikes come extra lean from the factory in order to meet emisisons standards. This means they will not run well before they warm up. They're called "cold blooded". I have one of these and I have to use a lot of choke for the first few miles, even on fairly warm days.