Yamaha F20A Service Manual page 108

FUEL
CARBURETOR
2. Measure:
Float height a
Out of specification → Replace.
Float height:
14.0 ± 0.5 mm (0.55 ± 0.02 in)
NOTE:
The float should be resting on the needle
valve, but not compressing it.
Take measurements at the midline of the
float, opposite the side it pivots on.
4-9
E