Yamaha F30A, Service Manual

Page: 68 / 285

CHK
ADJ
Periodic check and adjustment
3-11
67C3K11
2. Set the shift lever to the N position and
loosen the locknut
1
. Align the cable
end
a
with the mark
b
on the manual
starter cover by turning the adjusting nut
2
.
3. Tighten the locknut
1
.
Checking the engine idle speed
1. Start the engine and warm it up.
2. Attach the special service tool to spark
plug wire #1
1
, and then check the
engine idle speed. Adjust if out of specifi-
cation.
3. Turn the throttle stop screw
2
in direc-
tion
a
or
b
until the specified engine
idle speed is obtained.
NOTE:
• To increase the engine idle speed, turn the
throttle stop screw
2
in direction
a
.
• To decrease the engine idle speed, turn the
throttle stop screw
2
in direction
b
.
4. After adjusting the engine idle speed, rev
the engine a few times and let it idle to
check the stability of the engine.
Checking the ignition timing
1. Start the engine and warm it up.
2. Attach the special service tool to spark
plug wire #1
1
.
3. Check that the pointer
a
is aligned with
the “5°” mark on the flywheel magnet as
shown.
Digital tachometer: 90890-06760
Engine idle speed: 850
±
50 r/min
S67C3032
1
2
a b
S67C3033
1
Timing light: 90890-03141
S67C3034
b a
2
S67C3035
1