light YAMAHA WOLVERINE 2017 Owner's Manual

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EBU31922On-Command drive knobThe vehicle handles differently in each of the drive modes (“2WD”, “4WD” and “DIFF LOCK”). For
example, the vehicle requires more effort to turn in “DIFF LOCK” than in “2WD”. Always stop the
vehicle before changing the position of the On-Command drive knob. The meter display changes
according to the selected drive mode. The differen t drive indicators, and the differential gear lock
indicator light “DIFF. LOCK” come on as follows:
Knob position Indication Drive mode
No indicator light.
“2WD” (two-wheel drive): Power is supplied to the rear
wheels.
“4WD” (four-wheel drive): Power is supplied to the rear and
front wheels.
“DIFF LOCK” (four-wheel drive with the differential gear
locked): Power is supplied to the rear and front wheels and
the differential gear is locked.
Unlike in four-wheel drive, all wheels turn at the same
speed.
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TIPWhen the knob is set to “DIFF LOCK” or “4WD”, the differential gear lock indicator and indica-
tor light will flash until the differential gear is completely locked or unlocked.
 When the indicator and indicator light are flashi ng, turning the steering wheel back and forth
will help the differential gear lock to engage or disengage.
 Driving with the differential gear not properly engaged or disengaged (e.g., when the indicator
and indicator light are flashing) will cause the vehicle speed to be limited until the differential
gear is completely engaged or disengaged. U2MB7BE0.book Page 6 Thursday, March 3, 2016 11:46 AM

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TIPSkip steps 8–10 if the oil filter cartridge is not
being replaced. 8. Remove the oil filter cartridge with an oilfilter wrench. Make sure that the O-ring is
removed together with the oil filter car-
tridge. If the O-ring remains attached to
the crankcase, oil leakage may occur.
TIPAn oil filter wrench is available from a Yamaha
dealer. 9. Apply a light coat of clean engine oil tothe O-ring of the new oil filter cartridge.TIPMake sure that the O-ring is properly seated.
1. Engine oil drain bolt
2. Gasket
1 2
1. Oil filter cartridge
2. Oil filter wrench
2
1
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Inspection
The spark plug is an important engine com-
ponent and is easy to inspect. The condition
of the spark plug can indicate the condition of
the engine.
The ideal color of the porcelain insulator
around the center electrode is a medium-to-
light tan for a vehicle that is being ridden nor-
mally.
You should periodically remove and inspect
the spark plug because heat and deposits will
cause the spark plug to slowly break downand erode. If electrode erosion becomes ex-
cessive, or if carbon and other deposits are
excessive, you should replace the spark plug
with the specified plug.
Measure the spark plug gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.1. Spark plug wrench
1
Specified spark plug:
NGK/CPR7EA-91. Spark plug gap
1
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EBU32450Cleaning the spark arrester
WARNING
EWB03370Hot exhaust system may cause burns. To
avoid burns or fires, make sure that the en-
gine is stopped and the exhaust system is
cool before cleaning the spark arrester. Do
not start the engine while cleaning the ex-
haust system. 1. Remove the tailpipe bolts.2. Remove the tailpipe by pulling it out of
the muffler, and then remove the gasket.
3. Tap the tailpipe lightly, and then use a
wire brush to remove any carbon depos-
its from the spark arrester portion of the
tailpipe and inside of the tailpipe housing.1. V-belt case drain plug
1
1. Tailpipe bolt
1
1
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EBU33710Parking brakePull the parking brake lever rearward com-
pletely. If the parking brake lever clicks eight
times or more, have a Yamaha dealer adjust
the parking brake because the braking force
of the parking brake is weak. In addition, have
a Yamaha dealer check and adjust the park-
ing brake at the intervals specified in the peri-
odic maintenance and lubrication chart.EBU32550Brake light switch adjustmentThe brake light switch, which is activated by
the brake pedal, is properly adjusted when
the brake light comes on just before braking
takes effect. If necessary, adjust the brake
light switch as follows.
Turn the adjusting nut while holding the brake
light switch in place. To make the brake light
come on earlier, turn the adjusting nut in di-
rection (a). To make the brake light come on
later, turn the adjusting nut in direction (b).
EBU35930Cable inspection and lubrication
WARNING
EWB03380Damaged cables could restrict operation,
which may cause an accident or injury. In-
spect control cables frequently and re-
place damaged cables. Corrosion can
result when the outer covering of control
cables becomes damaged. Cables can
also become frayed or kinked. 1. Brake light switch
2. Adjusting nut
(a)
(b)
1
2
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If a fuse is blown, replace it as follows.1. Turn the key to “ ” (off) and turn off the
electrical circuit in question.
NOTICEECB00641To prevent accidental short-circuiting,
turn off the main switch when checking or
replacing a fuse. 2. Remove the hood. (See page 8-10 forhood removal and installation proce-
dures.)
3. Remove the blown fuse, and then install a new fuse of the specified amperage.
WARNING! Always use a fuse of the specified amperage. Never use any
material in place of the proper fuse.
Using an improper fuse can cause
damage to the electrical system and
may lead to a fire.
[EWB03440]
1. Backup fuse “BACK UP” (for clock)
2. Ignition fuse “IGNITION”
3. Four-wheel-drive motor fuse “DIFF”
4. Auxiliary DC jack fuse “TERMINAL”
5. Signaling system fuse “SIGNAL”
6. Headlight fuse “HEAD”
7. Spare fuse
8. Radiator fan motor fuse “FAN”
1
2
3
4
5
6
8
7
7
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4. Turn the key to “ ” (on) and turn on theelectrical circuit in question to check if
the device operates. If the fuse blows
again immediately, have a Yamaha dealer
check the electrical system.
5. Install the hood.EBU32670Replacing a headlight bulbIf a headlight bulb burns out, replace it as fol-
lows. 1. Remove the cover at the rear of the head- light by pulling it off.
Specified fuses:Main fuse:40.0 A
Fuel injection system fuse: 10.0 A
Headlight fuse: 15.0 A
Ignition fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Signaling system fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Radiator fan motor fuse: 25.0 A
Backup fuse: 10.0 A
EPS fuse: 40.0 A
1. Cover at the rear of the headlight
1
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2. Remove the headlight bulb cover by pull-ing it off.
3. Disconnect the headlight coupler. 4. Unhook the headlight bulb holder.1. Headlight bulb cover
1
1. Headlight coupler
1. Headlight bulb holder
11
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5. Wait for the headlight bulb to cool beforetouching or removing it. Remove the
burnt-out bulb by pulling it out.
6. Place a new headlight bulb into position, and then secure it with the bulb holder.
NOTICE: Do not touch the glass part of
the headlight bulb to keep it free from
oil, otherwise the transparency of the
glass, the luminosity of the bulb, and
the bulb life will be adversely affected.
Thoroughly clean off any dirt and fin-
gerprints on the headlight bulb using a
cloth moistened with alcohol or thin-
ner.
[ECB00652]
7. Connect the headlight coupler.
8. Install the bulb cover and the cover at the rear of the headlight. NOTICE: Make
sure the headlight bulb cover is se-
curely fitted over the bulb holder and
seated properly.
[ECB02210]
9. Adjust the headlight beam if necessary.1. Do not touch the glass part of the bulb.
1
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