Checking The Throttle Grip Free Play; Valve Clearance - Yamaha TT-R230 Owner's Manual

PERIODIC MAINTENANCE AND ADJUSTMENT
direction (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
1. Adjusting bolt
Engine idling speed:
7
1400–1600 r/min
TIP
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
Checking the throttle grip free
play
1. 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 deal-
er adjust it.
7-13
EAU21385

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
maintenance and lubrication chart.
EAU21402