2018 YAMAHA WOLVERINE suspension

4-23
4
WARNING
EWB02492Suspension components become hot
during operation. Never touch the com-
pression damping force adjusting bolt
and screw, the rebound damping force
adjusting screw or the oil reservoir with
your bare hand or skin until suspension
components have cooled.
 Always adjust the shock absorber as-
semblies on the left and right side to the
same setting. Uneven adjustment can
cause poor handling and loss of stability,
which could lead to an accident. NOTICEECB00091Never turn an adjusting mechanism be-
yond the minimum and maximum settings. TIPAlthough the total number of clicks or turns of
a damping force adjusting mechanism may
not exactly match the following specifications due to small differences in production, the ac-
tual number of clicks or turns always repre-
sents the entire adjusting range. To obtain a
precise adjustment, it would be advisable to
check the number of clicks or turns of each
damping force adjusting mechanism and to
modify the specifications as necessary.
Spring preload
1. Loosen the locknut.
2. Turn the spring preload adjusting nut in direction (a) to increase the spring pre-
load and thereby harden the suspension,
and in direction (b) to decrease the spring
preload and thereby soften the suspen-
sion.
UB3D7AE0.book Page 23 Tuesday, November 7, 2017 9:38 AM

4-27
4
WARNING
EWB00411These shock absorber assemblies contain
highly pressurized nitrogen gas. Read and
understand the following information be-
fore handling the shock absorber assem-
blies.
Do not tamper with or attempt to open
the cylinder assemblies.
 Do not subject the shock absorber as-
semblies to an open flame or other high
heat source. This may cause the unit to
explode due to excessive gas pressure. 
Do not deform or damage the cylinders
in any way. Cylinder damage will result in
poor damping performance.
 Do not dispose of a damaged or worn
out shock absorber assembly yourself.
Take the shock absorber assembly to a
Yamaha dealer for any service.
EBU33623Rear shock absorbersThe rear shock absorber assemblies are
equipped with a spring preload adjusting nut,
a rebound damping force adjusting screw, a
fast compression damping force adjusting
bolt, and a slow compression damping force
adjusting screw.
WARNING
EWB02492 Suspension components become hot
during operation. Never touch the com-
pression damping force adjusting bolt
and screw, the rebound damping force
Slow compression damping force settings:
Minimum (soft):18 click(s) in direction (b)*
Standard: 12 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned in di- rection (a)
UB3D7AE0.book Page 27 Tuesday, November 7, 2017 9:38 AM

4-28
4
adjusting screw or the oil reservoir with
your bare hand or skin until suspension
components have cooled.
 Always adjust the shock absorber as-
semblies on the left and right side to the
same setting. Uneven adjustment can
cause poor handling and loss of stability,
which could lead to an accident. NOTICEECB00091Never turn an adjusting mechanism be-
yond the minimum and maximum settings. TIPAlthough the total number of clicks or turns of
a damping force adjusting mechanism may
not exactly match the following specifications
due to small differences in production, the ac-
tual number of clicks or turns always repre-
sents the entire adjusting range. To obtain a
precise adjustment, it would be advisable to check the number of clicks or turns of each
damping force adjusting mechanism and to
modify the specifications as necessary.
Spring preload
1. Loosen the locknut.
2. Turn the spring preload adjusting nut in direction (a) to increase the spring pre-
load and thereby harden the suspension,
and in direction (b) to decrease the spring
preload and thereby soften the suspen-
sion.
UB3D7AE0.book Page 28 Tuesday, November 7, 2017 9:38 AM

8-7
8
8*Rear brake • Check operation/brake pad wear/fluid leak-
age.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
9 *Parking brake • Check operation and adjust if necessary. √√√√√
10 *Brake fluid • Change. Every 2 years
11 *Accelerator pedal • Check operation and free play. √√√√√
12 *V-b e l t • Check operation.
• Check for wear, cracks, or damage. √√
√
13 *Wheels • Check balance, runout and for damage.
• Replace if necessary. √ √√√
14 *Wheel bearings • Check bearing assemblies for loose-
ness/damage.
• Replace if damaged. √ √√√
15 *Front and rear
suspension • Check operation and for oil leakage.
• Correct if necessary.
√√
16 *Steering system • Check operation and for looseness. Replace
if damaged.
• Check toe-in. Adjust if necessary. √√√√√
NO. ITEM
ROUTINE INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1200
(750) 2400
(1500) 2400
(1500) 4800
(3000)
hours 20 75 150 150 300UB3D7AE0.book Page 7 Tuesday, November 7, 2017 9:38 AM

10-4
10
Front brake:Type:Hydraulic disc brake
Specified brake fluid:
DOT 4Rear brake:Type:Hydraulic disc brake
Specified brake fluid:
DOT 4Front suspension:Type:Double wishbone
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: 246 mm (9.7 in)Rear suspension:Type:
Double wishbone
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 269 mm (10.6 in)Electrical system:Ignition system:TCI
Charging system: AC magneto
Battery:Model:U1-H11L
Voltage, capacity:
12 V, 28.0 AhHeadlight(s):Bulb type:Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 35.0/35.0 W × 2
Tail/brake light: 12 V, 5.0/21.0 W × 2
Meter lighting:
EL (Electroluminescent)
Neutral indicator light: LED
Reverse indicator light: LED
Coolant temperature warning light:
LED
Engine trouble warning light: LED
Parking brake indicator light: LED
High-range indicator light:
LED
Low-range indicator light: LED
Differential gear lock indicator light: LED
UB3D7AE0.book Page 4 Tuesday, November 7, 2017 9:38 AM