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High RPM on startup?? 81 GS 450

  • Thread starter Thread starter Rgoodwin123
  • Start date Start date
R

Rgoodwin123

Guest
New to the gs bike. Its was running when i first got my hands on it. Been having some trouble with the bike getting up past 45 mph. I know this bike has a lot more power. But i cant figure out what the problem is. I just went through and got the timing down and i pulled the carbs off to check them. After i put them back on and went to start the bike back up, but as soon as i did, its sitting at about 4000 RPM and wotn droo down no matter what i do. I messed with the idle screw and the fuel mixture but it dosemt affect it one bit. Anyone who has any suggestion please help!!!
 
If the intakes rubber is pretty stiff replace those as well and get all new clamps.
 
Probably sketchy carbs as Chuck mentioned, could also be cracked carb boots causing an air leak.
Maybe even improperly routed throttle cables.
 
Just quickly I'd say you probably haven't got your throttle cable connected correctly.

You should do all the other stuff that Chuck has mentioned though.
 
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