Valve Clearance Adjustment - Yamaha RAPTOR YFM660RR Owner's Manual

EBU00303

Valve clearance adjustment

The correct valve clearance changes with use, re-
sulting in improper fuel/air supply or engine noise.
To prevent this, the valve clearance must be ad-
justed regularly. This adjustment however, should
be left to a professional Yamaha service techni-
cian.
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