Yamaha YP250 Mobility Scooter User Manual


 
6-4
CARBURETOR
CARB
CAUTION:
*****************************************************
NOTE:
YP600041
ASSEMBLY
Reverse the “DISASSEMBLY” procedure.
Note the following points.
D Before assembling, wash all parts in
clean petroleum based solvent.
D Always use a new gasket.
1. Install:
D Main nozzle
1
D Main jet
2
D Pilot jet
3
2. Install:
D Valve seat
1
D Float
2
D Needle valve
3
D Float pin
4
3. Inspect:
D Float height
a
Inspection and adjustment steps:
D Hold the carburetor in an upside down posi-
tion.
D Measure the distance from the mating sur-
face of the float chamber (gasket removed) to
the top of the float.
D If the float height is not within specification,
inspect the valve seat and valve needle.
D If either is worn, replace them both.
D If both are fine, adjust the float height by
bending the float tang
5
on the float.
D Check the float height again.
The float arm should be resting on the valve
needle without compressing it.