KYMCO XCITING 500 Service Manual page 105

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5. FUEL SYSTEM /FUEL PUMP
/FUEL TANK/CARBURETOR
Assemble the accelerating pump diaphragm
and new O-ring.
Install the accelerating pump diaphragm
with the small convex facing up.
Assemble the coasting enrichment valve and
new O-ring.
Assemble the jet needle, spring retainer,
spring and throttle valve
Apply thermo-grease to the threads and
tighten the carburetor heater securely.
After cleaning, reinstall the pilot screw to
the original setting by turn the screw in until
it lightly seats, and then backing it out the
same number of turns counted during
disassembly.
Replace the O-ring with a new one.
After the assembly and installation on the
engine have been completed, perform the
following adjustment.
Throttle cable adjustment (page 3-5)
Idle speed adjustment (page 3-14)
INSTALLATION
Installation is in the reverse order of
removal.
5-15
O-ring
Accelerating Pump Diaphragm
O-ring
Casting Enrichment Valve
XCITING 500
Small Convex

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