Checking The Throttle Cable Free Play; Valve Clearance - Yamaha WR250R Owner's Manual

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1. Idle adjusting screw
Engine idling speed:
1450–1650 r/min
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
PERIODIC MAINTENANCE AND ADJUSTMENT
Checking the throttle cable
free play
(b)
(a)
1. Throttle cable free play
The throttle cable 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 cable free play
and, if necessary, have a Yamaha deal-
er adjust it.
EAU21383

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 intervals specified in the periodic
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maintenance and lubrication chart.
6-18
EAU21401
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