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carby balance

by Greg Regan in General Tech Discussion 11 years ago

Is it possible for the carbys to be OK at idle and up to 3500 revs and above 5000 revs but be out at 4500 revs
Greg

Re: carby balance

by Roger Lee » 11 years ago

Roger Lee

128 5.28k 4.98k

Possible if cables or the system has a slight friction in a spot, but not likely the carb's fault by itself. If you have a vibration at 4500 and you know the carbs are balanced then look at the prop a little harder. Has the prop been dynamically balanced? The gearbox may need a re-shim, ect..

Roger Lee
LSRM-A & Rotax Instructor & Rotax IRC
Tucson, AZ Ryan Airfield (KRYN)
520-349-7056 Cell

Thank you said by: YEN NIEN YU

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