Service manual

07-10
3 Ensure that the seating area of the
choke plunger assembly is not worn
or damaged. If worn or damaged,
replace the plunger assembly.
3 Tighten all screws & jets to the right
specifications.
3 Generally, it is not advisable to
remove the jet needle. if it is
necessary, un screw the jet needle
fixing plate screws and remove the
jet needle along with the jet needle
retainer spring.
3 While assembling the jet needle
ensure that the jet needle ring pin
coincides with the corresponding
hole in piston valve.
Trouble Shooting
PROBLEM CAUSE RECTIFICATION
STARTING Clogged starter circuit Clean starter circuit with carbo cleaner.
TROUBLE Pilot jet clogging Clean jet with spray / replace if necessary.
Low fuel level Adjust float height to spec.
Flooding Check float for damage/puncture or float height.
IDLING NOT Pilot jet clogging Clean jet with spray / replace.
STABLE Incorrect mixture screw setting Adjust mixture screw as per specification.
High / Low fuel level Adjust float height to spec.
Piston valve sticky Clean piston valve / mixing body and ensure.
no damage in piston valve and diaphragm.
FLOODING High fuel level Adjust float height for spec.
Improper seating of
needle Clean needle valve I replace if necessary.
valve in valve seat
Float puncture Replace float.
POOR PICKUP Main
I Pilot jet clogged Clean I replace.
High I Low fuel level Adjust float height to spec.
Incorrect E-ring in jet needle Assemble E-ring in position correct position.
POOR Clogging of main air
I Clean with carbo Cleaner.
MILEAGE pilot air circuit.
High fuel level Adjust float height to spec.
Incorrect E-ring position Assemble E-ring in the correct notch.
in jet needle
Carburetor Maintenance