Yamaha TZ125M1 Owner's Service Manual page 97

CARBURETOR AND REED VALVE
EC463000
REMOVAL POINTS
EC463110
Throttle valve
1. Remove:
NOTE:
While compressing the spring (throttle valve),
disconnect the throttle cable.
EC463401
Pilot air screw
1. Remove:
NOTE:
To optimize the fuel flow at a smaller throttle
opening, each machine's pilot air screw has
been individually set at the factory. Before
removing the pilot air screw, turn it in fully and
count the number of turns. Record this number
as the factory-set number of turns out.
EC464000
INSPECTION
EC464130
Carburetor
1. Inspect:
NOTE:
• Use a petroleum based solvent for cleaning.
• Never use a wire.
4-9
• Throttle valve 1
• Ring 2
• Spring (throttle valve) 3
• Mixing chamber top 4
• Throttle cable 5
• Pilot air screw 1
• Carburetor body
Contamination ≥ Clean.
Blow out all passages and jets with com-
pressed air.
ENG