Throttle Surge.

Ahmed Jehanzeb jehanzeb at
Mon Dec 21 09:24:02 PST 2009

Got a first gen 650 which is surges and drops out at neutral throttle.

Lower rpm's are ok but higher rpm's make the throttle response
surge and drop put badly. Bike is also idling rough. 

It only sat for one month so fuel is not too old.

Besides the carbs, what else could cause this ?


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