Yamaha TZ125M1 Owner's Service Manual page 242

SETTING
EC71Q000
Carburetor setting parts
Part name
Main jet 1 1
Lean #160
* Rich
Pilot jet 2 2
Lean
* Rich
Jet needle Lean N8VK
3 3
* Rich N8VH
Lean N8WK 4JT-14916-WK
Rich N8WH 4JT-14916-WH
Power jet 4 4
Lean
* Rich
* Factory installed
7-8
TUN
Size Part number
4MX-14943-39
#162 4MX-14943-90
#165 4MX-14943-40
#168 4MX-14943-91
#170 4MX-14943-41
#172 4MX-14943-92
#175 4MX-14943-42
#178 4MX-14943-93
#180 4MX-14943-43
#182 4MX-14943-94
#185 4MX-14943-44
#188 4MX-14943-95
#190 4MX-14943-45
#192 4MX-14943-96
#195 4MX-14943-46
#198 4MX-14943-97
#200 4MX-14943-47
#205 4MX-14943-48
#210 4MX-14943-49
#215 4MX-14943-50
#220 4MX-14943-51
#38 4SR-14948-02
#40 4SR-14948-03
#42 4MX-14948-04
4JT-14916-VK
N8VJ 4JT-14916-VJ
N8VW 4JT-14916-VW
4JT-14916-VH
N8WJ 4JT-14916-WJ
N8WW 4JT-14916-WW
#40 4JT-1494F-03
#50 4JT-1494F-07
#60 4JT-1494F-11