Assembling The Fuel Pump; Checking The Fuel Joint - Yamaha E115A Service Manual

FUEL

Assembling the fuel pump

NOTE:
Clean the parts and soak the valves and the
diaphragms in gasoline before assembly to
obtain prompt operation of the fuel pump
when starting the engine.
1. Install the check valves 1 onto the fuel
pump body.
1
1
1
2. Install the spring 2 and plate 3.
3
2
3. Install the new gaskets 4, diaphragms
5, collars 6, O-rings 7, base 8, cover
9 on to the fuel pump body, and then
tighten the screws 0 to specified torque.
4
5
6
7
9
Fuel pump screw 0:
3.5 N·m (0.35 kgf·m, 2.6 ft·lb)
4-17
Fuel system
1
1
6G440040
6G440050
8
4
5
0
6G440060
NOTE:
Make sure that the gaskets and diaphragms
are kept in place through the assembly
process.

Checking the fuel joint

1. Visually check the fuel joint for cracks or
damage.
2. Connect the special service tool at the
outlet of fuel joint.
3. Apply the specified pressure to check
that the positive pressure is maintained
for 10 seconds. Replace the fuel joint if
necessary.
Vacuum/pressure pump gauge set:
90890-06756
Specified pressure:
50 kPa (0.5 kgf/cm
6G440070
2 , 7.3 psi)
61U5H11