Inspection - Yamaha 20C Service Manual

FUEL
CARBURETTOR
E32000-0*

INSPECTION

Carburettor body
1) Inspect the carburettor body for cracks or clog-
ging of the passages.
Needle valve
1) Inspect the needle valve for free movement and
wear, and replace if required.
Pilot screw
1) Inspect the needle valve for wear, and replace
if required.
Collar
1) Inspect the collar at the end of the accelerator-
arm for wear, and replace if required.
Float
1) Visually inspect the float for damage or cracks,
and replace if required.
2) Measure the float height. If it is higher or lower
than the specified float height, recheck the
valve seat and needle-valve.
Float height:
17.0 – 19.0 mm (0.67 – 0.75 in)
4-8
E