Yamaha F150A, Service Manual

Page: 465 / 493

10-14
General periodic maintenance
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Checking the PCV
1. Check the PCV. See “Checking the PCV”
(7-50).
Checking the propeller/propeller nut/
cotter pin
1. Check the propeller. See “Checking the
propeller” (8-3).
2. Check the propeller nut and cotter pin.
See “Installing the lower unit (L-transom
model)” (8-29).
Checking the PTT fluid level
Never get under the outboard motor while
it is tilted.
1. Fully tilt the outboard motor up, and then
support it using the tilt stop lever “1”.
2. Remove the reservoir cap “1” and O-ring
“2”, and then check the fluid level in the
reservoir.
Before removing the reservoir cap, make
sure that the PTT ram is fully extended.
Otherwise, fluid could be expelled force-
fully from the unit due to internal pres-
sure.
TIP:
If the fluid is at the proper level, a small
amount of fluid should flow out of the filler
hole when the reservoir cap is removed.
3. If the fluid is below the proper level, add
the recommended fluid.
4. Install a new O-ring and the reservoir
cap, and then tighten the reservoir cap to
the specified torque.
Checking the power trim and tilt unit
operation
1. Fully tilt the outboard motor up and down
a few times and check that the outboard
motor tilts up and down smoothly. Check
the PTT fluid level if the tilt operation is
not smooth.
TIP:
Make sure that the PTT motor makes a wind-
ing sound when it is operating smoothly.
2. Fully tilt the outboard motor up, and then
support it using the tilt stop lever “1”.
Check that the tilt stop lever locks in
place properly.
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Recommended PTT fluid: ATF Dexron II
Reservoir cap:
7 N·m (0.7 kgf·m, 5.2 ft·lb)
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