Checking The Diaphragm And Valves; Assembling The Fuel Pump - Yamaha F15B Service Manual

FUEL
2. Push down on the plunger and the
diaphragm, turn the fuel pump body 1
approximately 90° to a position where the
pin 2 can be removed easily, and then
remove the pin.
3. Slowly let up on the plunger and
diaphragm, and then remove them.

Checking the diaphragm and valves

1. Check the diaphragm 1 for tears and the
plate valves 2 for cracks. Replace if nec-
essary.
1
4-13
Fuel system
1
6D440170
2
6D440180
2
6D440190

Assembling the fuel pump

1. Align the plunger and diaphragm installa-
tion holes a , and then install the plunger
into the diaphragm.
2. Push down on the plunger and the
diaphragm, and then install the pin 1.
a
3. Turn the fuel pump body 2 approximate-
ly 90° , and then push down on the
plunger several times to make sure that
the pin does not come out.
1
6D440200
2
6D440210
6D45F11