Checking The Cooling Water Passage; Control System; Checking The Engine Idle Speed; Adjusting The Throttle Link And Throttle Cable - Yamaha F150A Service Manual

Checking the cooling water passage

1. Check the cooling water inlet cover 1
and cooling water inlet for clogs. Clean if
necessary.
1
2. Place the lower unit in water, and then
start the engine.
3. Check for water flow at the cooling water
pilot hole. If there is no water flow, check
the cooling water passage inside the out-
board motor.

Control system

Checking the engine idle speed

1. Start the engine and warm it up for 5 min-
utes.
2. Attach the special service tool to spark
plug wire #1 1, and then check the
engine idle speed.
63P3F11
1
Adjusting the throttle link and
throttle cable
NOTE:
S60V3130
• Be sure to synchronize the throttle valves
before adjusting the throttle cable.
• For synchronizing procedures, see Chapter
4, "Synchronizing the throttle valves."
1. Remove the intake silencer.
2. Loosen the locknut 1, remove the clip
2, and then disconnect the throttle cable
joint 3.
3. Loosen the locknut 4, and then discon-
nect the throttle link rod joint 5 and the
link rod joint 6.
3
Power unit / Control system
1
Digital tachometer: 90890-06760
Engine idle speed: 700 ± 50 r/min
4
5
2
3
1
2
S63P3140
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4
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9
1
S63P3150
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