3-6
ADJUSTING THE ENGINE IDLING SPEED
CHK
ADJ
NOTE:
a
b
EAS00054
ADJUSTING THE ENGINE IDLING SPEED
Prior to adjusting the engine idling speed, the
carburetor synchronization should be adjusted
properly, the air filter should be clean, and the
engine should have adequate compression.
1. Start the engine and let it warm up for several
minutes.
2. Install:
engine tachometer
(to the spark plug lead)
Engine tachometer
90890-03113
3. Measure:
engine idling speed
Out of specification
!
Adjust.
Engine idling speed
1,300
1,500 r / min
4. Adjust:
engine idling speed
a. Turn the pilot screw
1
in or out until it is light-
ly seated.
b. Turn the pilot screw out the specified number
of turns.
Pilot screw
2 turns out
c. Turn the throttle stop screw
2
in direction
a
or
b
until the specified engine idling speed is
obtained.
Direction
!
Engine idling speed is
increased.
Direction
!
Engine idling speed is
decreased.
5. Adjust:
throttle cable free play
Refer to “ADJUSTING THE THROTTLE
CABLE FREE PLAY”.
Throttle cable free play (at the
flange of the throttle grip)
3
5 mm
Summary of Contents for TW125 1999
Page 1: ......
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ......
Page 19: ...GEN INFO ...
Page 20: ...SPEC 2 ...
Page 22: ......
Page 47: ...CHK ADJ 3 ...
Page 49: ......
Page 89: ...CHK ADJ ...
Page 90: ...ENG 4 ...
Page 94: ......
Page 162: ...ENG ...
Page 163: ...CARB 5 ...
Page 165: ......
Page 174: ...CHAS 6 ...
Page 236: ...CHAS ...
Page 237: ...ELEC 7 ...
Page 239: ......
Page 274: ...TRBL SHTG 8 ...
Page 276: ......
Page 282: ...TRBL SHTG ...