ENGINE
434
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HOT CAMS CAMSHAFTS continued
Camshafts
Shim Kit
Exhaust
Duration
Exhaust
Lift
Exhaust
Lobe
Center
Exhaust
Valve
Lash
Intake
Dura-
tion
Intake
Lift
Intake
Lobe
Center
Intake
Valve
Lash
YAMAHA CONTINUED
Wolverine
350
95-06 Stage 1: single-cam motor. Excellent mid-
range and top-end increase. Uses stock
valve springs and rockers.
870390 199.95
G
----
250
10 107.5 0.15 250 10 107.5 0.13
YFZ 450R 09-13 This builder series cam is best suited for
modified engines and oversize engines. It
requires valve spring kit #VSK4003.
871039 TBA 870967 89.95
G 0
0
0
0 254 9.65 106 0.1
YFZ 450R 09-13 Used as a set 4235-2IN and 4236-2EX
provide the best peak torque and a good
overall power band. Stock valve springs
are OK.
870998 199.95
G
870967 89.95
G 0
0
0
0 239 8.64 106 0.1
YFZ 450R 09-13 Used as a set 4235-2IN and 4236-2EX
provide the best peak torque and a good
overall power band. Stock valve springs
are OK. Decompression mechanism is
included.
870999 199.95
G
870967 89.95
G 262 9.14 107 0.15 0
0
0
0
YFZ 450R 09-13 Used as a set the 4233-1INGS and 4234-
1EXGS provide improved part throttle
torque and low RPM torque. Valve Spring
Kit #VSK4003 is required.
870996 229.95
G
870967 89.95
G 0
0
0
0 230 8.13 108 0.1
YFZ 450R 09-13 Used as a set the 4233-1INGS and 4234-
1EXGS provide improved part throttle
torque and low RPM torque. Valve Spring
Kit #VSK4003 is required. Decompression
mechanism is included.
870997 229.95
G
870967 89.95
G 258 8.64 105 0.15 0
0
0
0
YFZ 450R 09-13 Used as a set the 4237-3IN and 4238-3EX
provide the most high RPM power. These
cams are best suited for higher speed
riding applications and oversize engines.
Stock valve springs are OK.
871000 199.95
G
870967 89.95
G 0
0
0
0 250 8.64 106 0.1
YFZ 450R 09-13 Used as a set the 4237-3IN and 4238-3EX
provide the most high RPM power. These
cams are best suited for higher speed
riding applications and oversize engines.
Stock valve springs are OK. Decompres-
sion mechanism included.
871001 199.95
G
870967 89.95
G 262 9.65 106 0.15 0
0
0
0
YFZ 450X 10-11 This builder series cam is best suited for
modified engines and oversize engines. It
requires valve spring kit #VSK4003.
871039 TBA 870967 89.95
G 0
0
0
0 254 9.65 106 0.1
YFZ 450X 10-11 Used as a set 4235-2IN and 4236-2EX
provide the best peak torque and a good
overall power band. Stock valve springs
are OK.
870998 199.95
G
870967 89.95
G 0
0
0
0 239 8.64 106 0.1
YFZ 450X 10-11 Used as a set 4235-2IN and 4236-2EX
provide the best peak torque and a good
overall power band. Stock valve springs
are OK. Decompression mechanism is
included.
870999 199.95
G
870967 89.95
G 262 9.14 107 0.15 0
0
0
0
YFZ 450X 10-11 Used as a set the 4233-1INGS and 4234-
1EXGS provide improved part throttle
torque and low RPM torque. Valve Spring
Kit #VSK4003 is required.
870996 229.95
G
870967 89.95
G 0
0
0
0 230 8.13 108 0.1
YFZ 450X 10-11 Used as a set the 4233-1INGS and 4234-
1EXGS provide improved part throttle
torque and low RPM torque. Valve Spring
Kit #VSK4003 is required. Decompression
mechanism is included.
870997 229.95
G
870967 89.95
G 258 8.64 105 0.15 0
0
0
0
YFZ 450X 10-11 Used as a set the 4237-3IN and 4238-3EX
provide the most high RPM power. These
cams are best suited for higher speed
riding applications and oversize engines.
871000 199.95
G
870967 89.95
G 0
0
0
0 250 8.64 106 0.1
YFZ 450X 10-11 Used as a set the 4237-3IN and 4238-3EX
provide the most high RPM power. These
cams are best suited for higher speed
riding applications and oversize engines.
Stock valve springs are OK. Decompres-
sion mechanism included.
871001 199.95
G
870967 89.95
G 262 9.65 106 0.15 0
0
0
0
