5-7
FUEL SYSTEM
● Connect the battery to the auto bystarter terminals and
wait for 5 minutes.
● Insert a vinyl tube into the fuel enrichening circuit and
blow into the tube.
● Air should not flow into the circuit. If air flows into the
circuit, replace the auto bystarter.
● Check the resister if the auto bystarter is normal but
engine is still hard to start.
● If there is a broken wire in the resister, current will not
flow to the PTC and the auto bystarter will not operate.
● If there is a shorted wire in the resister, current of a
higher voltage than specified will reach the PTC. This
will cause the fuel enrichening circuit to close too soon,
and starting will be difficult.
THROTTLE VALVE
DISASSEMBLY
● Remove the throttle valve.
● Remove the throttle cable.
● Remove the throttle valve spring.
● Remove the needle clip.
● Remove the seal cap.
● Remove the clip.
● Remove the jet needle.
ASSEMBLY
● Install the jet needle into the throttle valve and secure
with the retainer.
● Route the throttle cable through the spring and
compress the spring fully.
● Attach the throttle cable end to the bottom of the
throttle valve and thread the throttle cable through the
slot in the valve.
● Align the cutout in the throttle valve with the throttle
stop screw on the carburetor body and install the valve
on the carburetor.
NOTE
•Be sure that the throttle valve cutaway is toward the
air cleaner case side as it determines the volume of
air for fuel mixture.
● Operate the valve after installing the throttle valve.
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