Valve Clearance Adjustment; Throttle Lever Adjustment - Yamaha BRUIN YFM25BV Owner's Manual

1. Locknut
a. Throttle lever free play
1. Contre-écrou
a. Jeu du levier d'accélération
1. Contratuerca
a. Juego libre de la palanca del acelerador
2. Adjusting bolt
2. Boulon de réglage
2. Perno de ajuste

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.

Throttle lever adjustment

NOTE:
Adjust the engine idling speed before adjusting the
throttle lever free play.
1. Loosen the locknut.
2. Turn the adjusting bolt until the throttle lever
free play is 3.0–5.0 mm.
3. Tighten the locknut.
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