Idle Speed Adjustment; Valve Clearance Adjustment - Yamaha YFZ450T Manual Del Propietário

Idle speed adjustment

A special tester is needed to check the engine
r/min on this model.
Therefore, take the ATV to a Yamaha dealer to
have the idle speed adjusted.
Specified idle speed:
1,750–1,850 r/min

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.
8-75
EBU13970
EBU03030