R100GS running rough
My R100GS is not running so well at the moment and I need some ideas on what might be causing the problem.
The bike idles and accelerates fine, but when I get moving and hold it in the low to mid rev range it runs very rough. The right hand carb is running too rich (sooted spark plug and exhaust) but I can't seem to solve this by adjusting the mixture screw.
I overhauled the carbs with new O rings a short while ago, but not the diaphragms as they seem fine.
I balance the carbs by ear because I'm on the road and don't carry a 'carbtune' or similar, so they may not be perfectly balanced. However, I also balance my girlfriend's R80ST by ear and it runs like a dream...
Does anyone have a good idea what might be wrong? I'm leaning towards the float needle being worn.
Harvey
www.chasingthesun.org
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