Adjusting The Engine Idling Speed; Ajusting The Throttle Cable Free Play - Yamaha DT125R 2004 Owner's Manual

1D0-F8199-E2.qxd 20/9/04 11:32
Adjusting the engine idling
speed
1. Idle adjusting bolt
The engine idling speed must be
checked and, if necessary, adjusted
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
The engine should be warm before
making this adjustment.
NOTE:
The engine is warm when it
quickly responds to the throttle.
A diagnostic tachometer is nee-
ded to make this adjustment.
1. Attach the tachometer to the
spark plug lead.
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Página 43
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU21340 2. Check the engine idling speed
and, if necessary, adjust it to spe-
cification by turning the throttle
stop screw. To increase the engi-
ne idling speed, turn the screw in
direction (a). To decrease the
engine idling speed, turn the
screw in direction (b).
Engine idling speed:
1250-1450 r/min
NOTE:
If the specified idling speed cannot be
obtained as described above, have a
Yamaha dealer make the adjustment.
Adjusting the throttle cable
free play
(a) Free play
The throttle cable free play should
measure 3-5 mm (0,11-0,19 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, adjust it as follows.
NOTE:
The engine idling speed must be
correctly adjusted before checking
and adjusting the throttle cable free
play.
EAU21370
1. Lock nut
2. Adjusting nut
6-12
1
2
1. Loosen the locknut.
2. To increase the throttle cable free
play, turn the adjusting nut in
direction (a). To decrease the
throttle cable free play, turn the
adjusting nut in direction (b).
3. Tighten the locknut.