12
PERIODIC SERVICE
INSP
ADJ
PERIODIC SERVICE
FUEL SYSTEM
Trolling speed inspection and adjustment
1.
Check:
Trolling speed
Out of specification
Adjust.
Trolling speed:
1,250
±
50 r / min
Checking steps: (vehicle on water)
Start the engine and allow it to warm up for
a few minutes.
Attach the engine tachometer to the spark
plug lead.
Engine tachometer:
YU-8036-A / 90890-06760
Measure the engine trolling speed.
2.
Adjust:
Trolling speed
Adjustment steps:
Screw in the low speed screws
1
until they
are lightly seated.
Back the screws out by the specified num-
ber of turns.
Low speed screw:
5 / 8
±
1 / 4 (turns out)
Start the engine and allow it to warm up for
a few minutes.
Turn the throttle stop screw(s)
2
in or out
until the specified speed is obtained.
Turning in
Increase trolling speed.
Turning out
Decrease trolling speed.
Carburetor adjustment
1.
Adjust:
High speed screw
Adjustment steps:
Screw in the high speed screws
1
until
they are lightly seated.
Back the screws out by the specified num-
ber of turns.
High speed screw:
5 / 8 (F), 1-1 / 8 (R)
±
1 / 4
(turns out)
