Yamaha SX500D Supplementary Service Manual page 66

CARBURETORS
ASSEMBLY
Reverse the "DISASSEMBLY" procedure. Note
the following points.
NOTE:
S Before reassembling, wash all parts in clean
gasoline.
S Always use a new gasket and O-ring.
1. Tighten:
S Inner parts
Pilot air jet/main air jet:
0.7 Nm (0.07 mSkg, 0.5 ftSlb)
Screw(valve seat):
1 Nm (0.1 mSkg, 0.7 ftSlb)
Pilot jet:
0.7 Nm (0.07 mSkg, 0.5 ftSlb)
Main jet:
1.8 Nm (0.18 mSkg, 1.3 ftSlb)
Starter plunger assembly:
2.5 Nm (0.25 mSkg, 1.8 ftSlb)
2. Measure:
S Float height a
Out of specification ! Adjust.
Float height a :
11.3 X 15.3 mm (0.45 X 0.60 in)
Measurement and adjustment steps:
S Hold the carburetor in an upside down posi-
tion.
S Measure the distance between the carburetor
body and top of the floats.
NOTE:
The float arm should be resting on the valve, but
no compressing the needle valve.
S If the float height is not within specification, in-
spect the valve seat and needle valve.
S If either is worn, replace them both.
S If both are fine, adjust the float height by bend-
ing the float arm tang 1 on the float.
S Recheck the float height.
–62–
CARB