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Periodic maintenance and adjustment
Valve clearance
1. Throttle grip free play
If dirt or water is visible, remove the
hose from the clamp, clean it, and
then install it.
Checking the throttle grip free
play
The throttle grip free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
inner edge of the throttle grip. Periodi-
cally check the throttle grip free play
and, if necessary, have a Yamaha
dealer adjust it.
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 intervals
specified in the periodic maintenance
and lubrication chart.
2.
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