Idle Speed Adjustment; Throttle Cable Free Play Adjustment - Yamaha DT125R Owner's Manual

b
1
1. Throttle stop screw

Idle speed adjustment

1. Start the engine and warm it up
for a few minutes at approxi-
mately 1,000 to 2,000 r/min.
Occasionally rev the engine to
4,000 to 5,000 r/min. The engine
is warm when it quickly responds
to the throttle.
2. Set the idle to the specified
engine speed by adjusting the
throttle stop screw. Turn the
screw in direction a to increase
engine speed and in direction b
to decrease engine speed.
PERIODIC MAINTENANCE AND MINOR REPAIR
Standard idle speed:
1,250 ~ 1,450 r/min
NOTE:
If the specified idle speed cannot be
a
obtained by performing the above
adjustment, consult a Yamaha deal-
er.
EAU00632
a. Free play
Throttle cable free play
adjustment
NOTE:
Before checking the throttle cable
free play, the engine idling speed
should be adjusted.
Adjust the throttle cable by turning
the adjusting nut so that specified
free play at the throttle grip is
obtained.
6-17
a
Free play:
3 ~ 5 mm
1
2
3
4
EAU00634
5
6
7
8
9