Yamaha TZ125M1 Owner's Service Manual page 99

CARBURETOR AND REED VALVE
EC464600
Float
1. Inspect:
EC464701
Reed valve
a
1. Measure:
a
4-11
Measurement and adjustment steps:
• Hold the carburetor in an upside down
position.
• Measure the distance between the mating
surface of the float chamber and top of the
float using a vernier calipers.
NOTE:
The float arm should be resting on the nee-
dle valve, but not compressing the needle
valve.
• If the float height is not within specification,
inspect the valve seat and needle valve.
• If either is worn, replace them both.
• If both are fine, adjust the float height by
bending the float tab b on the float.
• Recheck the float height.
• Float 1
Damage ≥ Replace.
• Reed valve bending a
Out of specification ≥ Replace.
Reed valve bending limit:
0.2 mm (0.008 in)
• Valve stopper height b
Out of specification ≥ Adjust stopper/Replace
valve stopper.
Valve stopper height:
10.6~11.0 mm (0.417~0.433 in)
ENG