Measuring And Adjusting The Fuel Level - Yamaha YJ125S Service Manual

3
1
CARBURETOR
EAS00498
MEASURING AND ADJUSTING THE FUEL
LEVEL
1. Measure:
8 fuel level a
a
1
2
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a. Stand the motorcycle on a level surface.
b. Place the motorcycle on a suitable stand to
ensure that the motorcycle is standing
straight up.
c. Install the fuel level gauge 1 onto the fuel
drain pipe 2
d. Loosen the fuel drain screw
e. Hold the fuel level gauge vertically next to
the float chamber 3.
f. Measure the fuel level a.
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2. Adjust:
8 fuel level
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a. Remove the carburetor.
b. Check the needle valve seat and needle
valve.
c. If either is worn, replace them as a set.
d. If both are fine, adjust the float level by
slightly bending the float tang 1.
e. Install the carburetor.
f. Measure the fuel level a again.
g. Repeat steps (a) to (f) until the fuel level is
within specification.
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a
6-7
CARB
Out of specification
Fuel level (below the float chamber
mating surface)
6.5 ~ 7.5 mm (0.26 ~ 0.30 in)
Fuel level gauge
90890-01312 (YM-01312-A)
Adjust.