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Service Manual
TC-355
Engine Repair Cont.
FUEL SYSTEM
The fuel system consists of the carburetor (1), fuel tank (2), fuel
supply line (3), and fuel filter (4).
The carburetor is held in place between the air cleaner body and the
heat insulator block with two screws that are accessed on the
exterior of the cleaner body (with the cover and cleaner element
removed).
After removing the carburetor, inspect the gasket that mounts
between the carburetor and insulator block. Often times a
compromised gasket will show signs that it has allowed fuel to
escape. Replace all mounting gaskets when servicing the carburetor.
Using a straight edge such as a metal ruler, check the carburetor
insulator for any possible warping. If the insulator shows sign of
warping replace it with a new one.
Using a carburetor pressure tester, test the pressure-holding ability
of the carburetor. Attach the tester line to the intake fitting of the
carburetor (not to be confused with the fitting that accommodates
the purge bulb return line). The carburetor should hold 7 PSI.
Readings less than this indicate a problem within the carburetor.
Fuel Systems cont.
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