Yamaha TT-R125(R) Owner's Service Manual page 224

CARBURETOR
EC464600
Float
1. Inspect:
Float 1
G
Damage → Replace.
Coasting enricher
1. Inspect:
Diaphragm 1
G
Spring 2
G
Cover 3
G
Tears (diaphragm)/damage →
Replace.
ASSEMBLY AND INSTALLATION
Carburetor
1. Install:
Diaphragm 1
G
Spring 2
G
Cover 3
G
Screw 4
G
LT
2. Install:
Throttle stop screw 1
G
Pilot air screw 2
G
Note the following installation points:
Turn in the pilot air screw until it is lightly
G
seated.
Turn out the pilot air screw by the number
G
of turns recorded before removing.
Pilot air screw:
2-1/2 ~ 3-1/2
(example)
3. Install:
Pilot air jet 1 1
G
Pilot air jet 2 2
G
4 - 8
ENG
2 Nm (0.2 m · kg, 1.4 ft · lb)