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MAINTENANCE
Engine Idle Speed
Carburetor Choke
Idle speed (RPM) of the engine is best set after regular
service is performed. Valve clearance out of specifications,
stale/dirty fuel, varnish or contaminants in the carburetor,
dirty air filter, fouled spark plug or tight throttle cable can
all adversely affect the engine idle speed. The idle speed
must be set after the engine is at full operating
temperature.
Idle speed is set with the slide stop (idle speed) screw
located on the right side of the carburetor. Set the engine
idle speed to
1500 RPM ±100 RPM
.
Choke Inspection
Note: Inspection of the carburetor choke system is
important for the proper running of the engine. Choke
enables the motorcycle to cold start more easily,
yet
excessive use of the choke will cause carbon fouled spark
plugs, poor fuel mileage, and excessive exhaust
emissions. Do not operate a warm engine with the choke
on.
Operate the choke lever on the handlebar (pull towards
the rear) and observe that the cable pulls up the black
choke lever on the carburetor to the
ON
position (choke
butterfly is closed, restricting air). Push the handlebar
choke lever forward to turn
OFF
the choke. The black
lever on the carburetor should return to the lower position
(choke butterfly is open, allowing full air flow).
Choke ON
Choke OFF
Idle speed screw
