Yamaha F150A, Service Manual

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Intake manifold and vapor separator
Draining the fuel
1. Loosen the vapor separator drain screw
“1”, and then remove the cap “2”.
2. Push the air valve “3” inward.
3. Tighten the vapor separator drain screw
to the specified torque.
Removing the intake manifold
1. Disconnect the ISC valve coupler “a” and
air pressure sensor coupler “b”.
2. Remove the holder “1” from the intake
manifold.
3. Remove the vapor gas hose with filter “1”
from the holder “2”.
4. Remove the intake manifold “1” and dow-
els “2”.
Removing the vapor separator
1. Remove the drain hose “1” from the
intake manifold.
2. Remove the vapor separator bolts “2”.
3. Remove the plastic ties “1”.
4. Disconnect the pressure regulator hose
“2” from the intake manifold.
5. Remove the vapor separator “3”.
TIP:
Remove the fuel hose and fuel pump coupler
in this order from the intake manifold.
Vapor separator drain screw:
2 N·m (0.2 kgf·m, 1.5 ft·lb)
1
2
3
a
b
1
1
2
1
2
2
1
2
1