Inspection Of Fuel Pump And Needle Valve - TOHATSU MX 50D2 Service Manual

Fuel System
1
3 1
1 1
4-24
1
2 2
1 1
4) Inspection of Fuel Pump and
Needle Valve
Connect vinyl hose 1 to inlet of fuel pump.
1.
Place carburetor body upside down to shut off needle valve.
2. Apply pressure, and check if the pressure is maintained for
10 seconds. Disassemble and inspection if necessary.
Vacuum Pressure Gauge
P/N. 3AC-99020-1
It can instantly check to apply pressure by your
breath, when without pressure gauge.
5) Disassembly and Inspection of Fuel
Pump
To prevent fuel from dripping on the floor,
use a vessel to catch the fuel.
1. Remove float chamber of #3 carburetor to disassemble Fuel
Pump.
Check diaphragm 1 for break, crack and damage, and
2.
replace if necessary.
Check check valve 2 for damage and deterioration, and
3.
replace if necessary.
Check fuel pump body 3 for crack and damage, and
4.
replace if necessary.
5. Clean fuel pump body.
CAUTION
2st 50D2 2011
GB