Sorry if this has already been covered. My '91 does this. Can anyone tell me if this condition is a symptom of leaking vacuum? Also, the bike sounds kind of "rough" and perhaps a bit louder than I'd expect a stock GS to be, though this is the only one I've ever ridden.
Thanks for any suggestions!
Dan
Quote from: lumpoffireSorry if this has already been covered. My '91 does this. Can anyone tell me if this condition is a symptom of leaking vacuum? Also, the bike sounds kind of "rough" and perhaps a bit louder than I'd expect a stock GS to be, though this is the only one I've ever ridden.
Thanks for any suggestions!
Dan
That's common when the idle speed is set a bit high. After completely warmed, turn the idle adjustment knob under the carbs out a bit till it doesn't hang up anymore. I can reach under the carbs and adjust it while sitting in the bike. Works best with gloves on with a warm bike. :lol:
If this doesn't fix it, then you might have another problem. Folks tend to set the idle too high when adjusting w/o completely warming the engine. If the engine runs poorly when the bike is cold and smoothly when warmed up, there could be a tight valve. Time to check valve clearences.