9.
T
urn the fuel supply valve (1) to OPEN position (O).
10.
Bleed the air.
1)
Fill up the fuel tank with fuel (to the level where the
float is at the highest position).
2)
Loosen the knob of feed pump (4), pull it out, then
pump
it in and out until the movement becomes
heavy.
REMARK
• It is not necessary to remove the plugs at the fuel
prefilter head and at the fuel main filter head.
• When the engine runs out of fuel, use the same
procedure to operate the feed pump (4) and bleed
the air.
3)
After bleeding air, push in the knob of feed pump (4)
and tighten it.
11.
Turn the starting switch key to START position (C) and
start the engine.
12.
Check the filter seal surface and the mounting face of the
transparent cup for fuel leakage.
If
there is any leakage of fuel, check the tightening condi-
tion of the filter cartridge.
If the fuel still leaks, remove the filter cartridge again, and
check the packing surface for damage or foreign material.
If the packing surface is damaged or there is any foreign
material on it, replace the filter cartridge with a new one,
install the filter cartridge according to the preceding procedure, and then bleed air from the fuel circuit.
13.
Run the engine at low idle for approximately 10 minutes.
14.
After the replacement is completed, close the engine side cover (2) and the fuel tank inspection cover.
MAINTENANCE MAINTENANCE PROCEDURE
4-57
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