4. DISASSEMBLING AND SERVICING
b) After washing the carburetor, reset the pilot screw
back. Only repairing the carburetor can disassemble
it.If the pilot screw is broken, replace with new one.
Disassemble the broken pilot screw from the
carburetor.
Put the spring onto the replaced pilot screw and then
install it onto the carburetor.
Turn the pilot screw in until it is lightly seated the
bottom of hole, then turn the screw out the specified
numbers of the turns.
PILOT SCREW BROKEN
c) Inspection
Float level height
Place the carburetor in the position as shown and measure the distance between the float top
and carburetor body when the float just contacts
the seat without compressing the valve spring.
If the height is out of specification, replace the float valve and recheck the float height
Tool: Float level gauge.
d) Carburetor idle speed adjusting
Start the engine to preheat it to normal running temperatu
Adjust the pilot screw to specified idle speed.
Specified idle speed：2100±100rpm
Pilot Screw Standard Opening State
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