Adjusting The Engine Idling Speed; Checking The Throttle Grip Free Play - Yamaha WR250X Owner's Manual

Hide thumbs Also See for WR250X:
Table of Contents

Advertisement

Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows.
TIP
A digital tachometer is needed to make
this adjustment.
1. Position the digital tachometer at
the ignition coil, which is located in
the spark plug cap.
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the idle adjust-
ing screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
PERIODIC MAINTENANCE AND ADJUSTMENT
EAU45323
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.
Checking the throttle grip free
play
(b)
(a)
1
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
dealer adjust it.
6-19
EAU21385
2
1
3
4
5
6
7
8
9

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents