16 TUNING THE ENGINE 97
16.1 Checking the play in the throttle cable
400192-11
– Check the throttle grip for smooth operation.
– Move the handlebar to the straight-ahead position. Move the throttle grip back and
forth slightly to determine the play in throttle cable
.
Play in throttle cable 2… 3 mm (0.08… 0.12 in)
» If the throttle cable play does not meet specifications:
– Adjust the play in the throttle cable. ( p. 97)
Danger
Danger of poisoning Exhaust gases are toxic and inhaling them may result
in unconsciousness and/or death.
– When running the engine, always make sure there is sufficient ventila-
tion, and do not start or run the engine in an enclosed space without an
effective exhaust extraction system.
– Start the engine and let it run idle. Move the handlebar to and fro over the entire
steering range.
The idle speed must not change.
» If the idle speed changes:
– Adjust the play in the throttle cable. ( p. 97)
16.2 Adjusting the play in the throttle cable
Preparatory work
– Remove the seat. ( p. 56)
(All 125/150 models)
–
Turn handle
of the fuel tap to the OFF position.
(Figure M01127-10 p. 14)
(250 SX)
–
Turn handle
of the fuel tap to the OFF position.
(Figure B02072-10 p. 14)
(All XC models)
–
Turn handle
of the fuel tap to the OFF position.
(Figure L00904-10 p. 14)
– Remove the fuel tank. ( p. 63)
– Check the routing of the throttle cable. ( p. 71)
L00928-10
Main work
– Move the handlebar to the straight-ahead position.
–
Push back sleeve
.
–
Ensure that the throttle cable sleeve is pushed all the way into barrel adjuster
.
–
Loosen nut
.
400192-11
–
Turn adjusting screw
in such a way there is throttle cable play
in the throt-
tle grip.
Guideline
Play in throttle cable 2… 3 mm (0.08… 0.12 in)
–
Tighten nut
.
–
Slide on sleeve
.
Finishing work
– Check the throttle grip for smooth operation.
– Install the fuel tank. ( p. 64)
– Mount the seat. ( p. 56)
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