Fuel Pump - TOHATSU 40 Service Manual

SECTION 3
5. Connect filter hoses.
6. After servicing oil filter, bleed automixing system. See Automixing
System, this section.

FUEL PUMP

Before servicing the fuel pump, disconnect the fuel
hose from the engine to prevent excessive fuel
spillage.
Improper arrangement of fuel pump parts may not
prevent full assembly of the unit. Match mark parts
before disassembly and reference the illustrations in
the Inspection procedure to ensure proper orientation
of internal components.
Disassembly
Models 40 and 50 are equipped with carburetor
mounted fuel pump. Disconnect fuel hoses from
pump, loosen the four mounting screws and remove
pump. Gently separate the pump components and
continue with Cleaning and Inspection procedures.
1. Disconnect fuel hoses from fuel pump.
2. Loosen pump mounting screws and remove fuel pump (1)
1
and gasket (2) from crankcase.
3. Remove the fuel pump cover screws and cover. Gently separate
the pump components.
2
The fuel pump of the former production models 60,
70, 80 and 90 uses a guide plate (3) and a spring (4).
For the present production models 60, 70, 80 and
90, the material of the pump diaphragm has been
changed, and the guide plate (3) and the spring (4)
are not used. Those components are still used for the
models 115, 120 and 140.
3-14
NOTE
NOTE
NOTE
NOTE
T1007
T1008
3-/ 4-Cylinder