How old is your quad? have you had the valve clearance checked? I had simular problems with mine the motor would spin and spin but was really hard to start would have to barely hold the throttle open and i mean barely. checked valves and could not get a .001 between cam lobe and lifter buckets just a thought. had to re shim to get right clearance starts great now. And welcome to the Honda TRX ATV forum.
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