Engine; Adjusting The Engine Idling Speed - Yamaha MBK YQ100 Service Manual

ADJUSTING THE ENGINE IDLING SPEED

EAS00054

ENGINE

ADJUSTING THE ENGINE IDLING SPEED
CAUTION:
For safety reasons, place the scooter on the
centerstand before starting the engine.
1.Start the engine and let it warm up for several
minutes.
2.Attach:
• engine tachometer
(onto the spark plug lead)
3.Measure:
• engine idling speed
Out of specification → Adjust.
4.Adjust:
• engine idling speed
a.Turn the pilot screw
b.Turn the pilot screw out the specified number
of turns.
c. Turn the throttle stop screw
or right until the specified engine idling speed
is obtained.
322025(b)
Direction left
Direction right Engine idling speed is decreased.
5.Adjust:
• throttle cable free play
Refer to "ADJUSTING THE THROTTLE
CABLE FREE PLAY".
3-11
INSP
REG
Engine tachometer
90890-03113
Engine idling speed
±
2000 200 r/mn
in until it is lightly seated.
Pilot screw setting:
TEIKEI - TK ø 16
1 5/8
Engine idling speed is increased.
in direction left