Yamaha YZ450FT Automobile User Manual


 
7 - 9
TUN
SETTING
Carburetor setting parts
Part name Size Part number
Main jet Rich
(STD)
Lean
#178
#175
#172
#170
#168
#165
#162
#160
#158
#155
#152
4MX-14943-93
4MX-14943-42
4MX-14943-92
4MX-14943-41
4MX-14943-91
4MX-14943-40
4MX-14943-90
4MX-14943-39
4MX-14943-89
4MX-14943-38
4MX-14943-88
Pilot jet Rich
(STD)
Lean
#52
#50
#48
#45
#42
#40
#38
4MX-14948-08
4MX-14948-07
4MX-14948-06
4MX-14948-05
4MX-14948-04
4MX-14948-03
4MX-14948-02
Jet needle Rich
Lean
NFPN
NFPP
NFPQ
NFPR
NFPS
NFPT
NFPU
5TA-14916-PN
5TA-14916-PP
5TA-14916-P1
5TA-14916-PR
5TA-14916-PS
5TA-14916-PT
5TA-14916-PU
Rich
(STD)
Lean
NFLN
NFLP
NFLQ
NFLR
NFLS
NFLT
NFLU
5TA-14916-LN
5TA-14916-LP
5TA-14916-L1
5TA-14916-LR
5TA-14916-LS
5TA-14916-LT
5TA-14916-LU
Leak jet Rich
(STD)
Lean
#35
#40
#45
#50
#55
4JT-1494F-01
4JT-1494F-03
4JT-1494F-05
4JT-1494F-07
4JT-1494F-09