Adjusting The Throttle Lever Free Play; Valve Clearance; Brakes - Yamaha YFZ 2018 Owner's Manual

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Adjusting the throttle lever free play

(b)
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(a)
2 3
1. Rubber cover
2. Throttle lever free play adjusting bolt
3. Locknut
4. Throttle lever free play
Throttle lever free play:
2.0–4.0 mm (0.08–0.16 in)
Periodically check the throttle lever free play and
adjust if necessary.
1. Slide the rubber cover back.
2. Loosen the locknut.
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3. To increase the throttle lever free play, turn
the throttle lever free play adjusting bolt in di-
rection (a). To decrease the throttle lever free
play, turn the adjusting bolt in direction (b).
4. Tighten the locknut.
5. Slide the rubber cover to its original position.
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Valve clearance

The valve clearance changes with use, resulting in
improper air-fuel mixture and/or engine noise. To
prevent this from occurring, the valve clearance
must be adjusted by a Yamaha dealer at the inter-
vals specified in the periodic maintenance and lu-
brication chart.
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Brakes

Replacement of brake components requires pro-
fessional knowledge. Brake service should be
performed by a Yamaha dealer.
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WARNING
Operating with improperly serviced or adjust-
ed brakes could lead to a loss in braking ability
and an accident.
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