2015 YAMAHA VIKING light

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7. Remove the oil filter cartridge with an oil filter 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. 1. Oil filter cartridge 2. Oil filter wrench8. 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. O-ring9. Install the new oil filter cartridge with an oil filter wrench, and then tighten it to the
specified torque with a torque wrench.
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1
Tightening torque:Oil filter cartridge: 17 Nm (1.7 m·kgf, 12 ft·lbf)
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1. Spark plug wrench
Inspection
The spark plug is an important engine compo-
nent 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 down
and 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.
1
Specified spark plug:CPR7EA-9 (NGK)
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2. Remove the tailpipe by pulling it out ofthe 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. Gasket 2. Spark arrester 3. Tailpipe4. Install the gasket, and then insert thetailpipe into the muffler and align the bolt
holes.
5. Install the bolts and tighten them to the specified torque.
Valve clearanceThe correct valve clearance changes with
use, resulting in improper fuel/air supply or
engine noise. To prevent this, the valve clear-
ance must be adjusted regularly. This adjust-
ment however, should be left to a professional
Yamaha service technician.
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Tightening torque:
Tailpipe bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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3. Release the parking brake lever.
4. Slide the rubber cover back on the park- ing brake cable.
5. Loosen the locknut.1. Rubber cover 2. Adjusting nut 3. Locknut6. Turn the adjusting nut in direction a to
increase the free play or in direction b to
decrease the free play.
7. Tighten the locknut, and then slide the rubber cover to its original position.
EVU00880Brake 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
direction a. To make the brake light come on
later, turn the adjusting nut in direction b.1. Brake light switch 2. Adjusting nut
1
ab
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b
2
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5B410023Fuse replacementThe main fuse, the fuel injection system fuse,
the EPS fuse, and the fuse box are located
under the hood.1. Fuse box 2. Main fuse
3. EPS fuse
4. Fuel injection system fuse
5. Fuel injection system spare fuse 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 (
× 3)
8. Radiator fan motor fuse “FAN”
If a fuse is blown, replace it as follows.
1. Turn the key to “ ” (off) and turn off the
electrical circuit in question.
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NOTICETo prevent accidental short-circuiting,
turn off the main switch when checking or
replacing a fuse.2. Remove the hood. (See page 8-7 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. 4. Turn the key to “ ” (on) and turn on the
electrical 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. 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
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EVU01670Replacing a he adlight bulbIf a headlight bulb burns out, replace it as fol-
lows.
1. Remove the cover at the rear of the headlight by pulling it off.1. Cover at the rear of the headlight
2. Remove the headlight bulb cover by pull- ing it off.1. Headlight bulb cover
1
1
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3. Disconnect the headlight coupler.1. Headlight coupler
4. Unhook the headlight bulb holder.1. Headlight bulb holder
1
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