Periodic maintenance and adjustment
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EAU21386
Checking the throttle grip free
play
Measure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21403
Valve clearance
The valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine noise,
and eventually engine damage. To pre-
vent this from occurring, have your
Yamaha dealer check and adjust the
valve clearance at regular intervals.
TIP
This service must be performed when
the engine is cold.
1. Throttle grip free play
Throttle grip free play:
3.0–5.0 mm (0.12–0.20 in)
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BC9-9-14E0.book 16 ページ 2019年5月8日 水曜日 午後1時22分