5-12 FUEL SYSTEM
CLEANING
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Clean all jets with a spray-type carburetor cleaner and dry
them using compressed air.
Clean all circuits of the carburetor thoroughly not just the
perceived problem area. Clean the circuits in the carburetor
body with a spray-type cleaner. If necessary, soak each cir-
cuit in a dip-type cleaning solution to loosen dirt and varnish.
Dry the carburetor body using compressed air.
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After cleaning, reassemble the carburetor.
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INSPECTION
Check the following items for any damage or clogging. If any
damages are found, replace the damaged parts with new ones.
* Pilot jet * Piston valve
* Main jet * Starter jet
* Pilot screw * O-rings
* Pilot air jet * Throttle valve
* Needle jet holder * Diaphragms
* Float * Pilot outlet and by-pass ports
* Needle valve * Vacuum hose
* Valve seat * Air vent hose
* Jet needle * Overflow hose
* Needle jet * Fuel hose
Some carburetor cleaning chemicals, especially dip-
type soaking solutions, are very corrosive and must
be handled carefully. Always follow the chemical man-
ufacturers instructions on proper use, handling and
storage.
Do not use a wire to clean the jets or passageways. If
wire is used, the jets and passageways may become
damaged. If the components cannot be cleaned with a
spray-type cleaner it may be necessary to soak the
components in a dip-type cleaning solution. Always
follow the chemical manufacturers instructions for
proper use and cleaning of the carburetor compo-
nents.
Replace the removed O-rings with new ones.
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