Checking The Diaphragm And Valves; Assembling The Fuel Pump - Yamaha FT50C Service Manual

3. Slowly let up on the plunger and dia-
phragm, and then remove them.

Checking the diaphragm and valves

1. Check the diaphragm 1 for tears and the
valves 2 for cracks. Replace if neces-
sary.
1

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 dia-
phragm, and then install the pin 1.
3. Turn the fuel pump body 1 2 approxi-
mately 90°, and then push down on the
plunger several times to make sure that
the pin does not come out.
62Y5A11
4. Assemble the cover 3, gasket 4, and
seal 5 with the screws 6, and then
install the fuel pump.
2
5
S62Y4120
Fuel filter and fuel pump
6
572
3
4
1
2
3
4
5
S62Y4160
6
7
8
9
4-6