Yamaha FZS1000N Service Manual page 315

CARBURETORS
EAS00495
MEASURING AND ADJUSTING THE FUEL
LEVEL
1. Measure:
S fuel level a
Out of specification ! Adjust.
Fuel level (below the line on the
float chamber)
3.0 X 4.0 mm (0.118 X 0.157 in)
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 to the fuel drain
pipe 2 .
Fuel level gauge
YU-01312-A
d. Loosen the fuel drain screw.
e. Hold the fuel level gauge vertically next to the
line on the float chamber 3 .
f. Measure the fuel level a on both sides of the
carburetor assembly.
NOTE:
The fuel level readings should be equal on both
sides.
2. Adjust:
S fuel level
a. Remove the carburetor assembly.
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 slight-
ly bending the float tang 1 .
e. Install the carburetor assembly.
f. Measure the fuel level again.
g. Repeat steps (a) to (f) until the fuel level is
within specification.
7-10
CARB