Service Repair Manual

FUEL LINE (FBC)
REMOVAL AND INSTALLATION
1. Pipes should be secured firmly with clips and clamps to
prevent looseness.
2. With the hoses and pipes are installed, make sure that they
are not distorted or loose.
3. Route the hoses and tubes correctly and fit their ends
securely.
4. Install clips and clamps in correct direction to make sure that
they do not interfere with neighboring objects.
INSPECTION
1. Check the hoses and pipes for cracks, bend, deformation,
deterioration or clogging.
2. Check the fuel filter for clogging or damage.
3. Check the canister for clogging.
4. Check the overfill limiter (two-way valve) and the fuel check
valve for malfunction.
Overfill Limiter Simple Test
A simple way of inspecting the overfill limiter is to remove, and
then air is lightly blown into either the inlet or outlet by mouth.
If the air passes after a slight resistance, overfill limiter is in good
condition.
5. Check purge control valve as follows:
1) Make sure that the engine coolant is between 80 and
95°C (176 and 205°F).
2) Disconnect the purge control hose from the carburetor
and blow into the purge hose. The valve should not allow
airflow. Then start the engine and increase the engine
speed to 1,500 to 2,000 rpm and blow into the purge
hose. If the valve is not open, check for clogged or broken
vacuum hose, or malfunctioning thermo valve.
FUEL FILTER REPLACEMENT
1. Remove the fuel tank cap to release the fuel tank pressure.
2. Disconnect the fuel hoses from the fuel filter, and then
remove the fuel filter.
CAUTION
1) Whenever the fuel filter is replaced, always inspect the
flex hoses for deterioration and cracking, and replace
as necessary.
2) Ensure the installation is secure and the fuel line
routing is in the original configuration.
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