Yamaha YZ250F(Y) Owner's Service Manual page 181

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SPECIFICATIONS OF JET NEEDLE
For USA and CDN
Rich
1 richer
0.5 richer
STD
0.5 leaner
Lean
1 leaner
Except for USA and CDN
Rich
1 richer
0.5 richer
STD
0.5 leaner
Lean
1 leaner
Rich
N
P
NFLN-7
NFLP-7
NFPN-6
NFPP-6
NFLN-6
NFLP-6
NFPN-5
NFPP-5
NFLN-5
NFLP-5
Rich
N
P
NFLN-6
NFLP-6
NFPN-5
NFPP-5
NFLN-5
NFLP-5
NFPN-4
NFPP-4
NFLN-4
NFLP-4
Diameter of straight portion
Q
R
NFLQ-7
NHKR-5
NFPQ-6
NFPR-6
NFLQ-6
NHKR-4
NFPQ-5
NFPR-5
NFLQ-5
NHKR-3
Diameter of straight portion
Q
R
NFLQ-6
NFLR-6
NFPQ-5
NFPR-5
NFLQ-5
NFLR-5
NFPQ-4
NFPR-4
NFLQ-4
NFLR-4
7-4
ENGINE
S
T
NFLS-7
NFLT-7
NFPS-6
NFPT-6
NFLS-6
NFLT-6
NFPS-5
NFPT-5
NFLS-5
NFLT-5
S
T
NFLS-6
NFLT-6
NFPS-5
NFPT-5
NFLS-5
NFLT-5
NFPS-4
NFPT-4
NFLS-4
NFLT-4
Lean
U
NFLU-7
NFPU-6
NFLU-6
NFPU-5
NFLU-5
Lean
U
NFLU-6
NFPU-5
NFLU-5
NFPU-4
NFLU-4

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This manual is also suitable for:

2009 yz250f2009 yz250fy

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