Adjusting The Engine Idling Speed; Adjusting The Throttle Cable Free Play - Yamaha PW80(W) Owner's Manual

Adjusting the engine idling
speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
NOTE:
G
The engine is warm when it quickly
responds to the throttle.
G
A diagnostic tachometer is needed
to make this adjustment.
1. Attach the tachometer to the spark
plug lead.
2. Check the engine idling speed
and, if necessary, adjust it to spec-
ification by turning the throttle stop
screw. To increase the engine
idling speed, turn the screw in di-
rection (a). To decrease the en-
gine idling speed, turn the screw in
direction (b).
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU21340
(b)
1
1. Throttle stop screw
Engine idling speed:
1650–1750 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)
1. Throttle cable free play
The throttle cable free play should mea-
sure
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, adjust it as follows.
NOTE:
The engine idling speed must be cor-
rectly adjusted before checking and ad-
justing the throttle cable free play.
6-11
1
3.0–5.0 mm (0.12–0.20 in)
1. Loosen the locknut.
2. To increase the throttle cable free
play, turn the adjusting nut in direc-
tion (a). To decrease the throttle
EAU21370
2
3
4
5
at the
6
7
8
9