2016 YAMAHA VIKING VI Owners Manual

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8
Installation1. Clean the surface of the spark plug gas-
ket and its mating surface, and then wipe
off any grime from the spark plug
threads.
2. Install the spark plug and tighten it to the specified torque. If a torque wrench is not
available when you are installing the
spark plug, a good estimate of the cor-
rect torque is one-quarter to one-half turn
past finger tight. Have the spark plug
tightened to the specified torque as soon
as possible.
3. Install the spark plug cap.
4. Lower the cargo bed.
EBU34821Cleaning the air filter elementThe air filter element should be cleaned every
20–40 hours. It should be cleaned and lubri-
cated more often if the vehicle is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions.
Check the air filter elem ent rubber joint to the
throttle body and manifold fittings for an air-
tight seal. Tighten all fittings securely to avoid
the possibility of unfiltered air entering the en-
gine.NOTICEECB02270Never operate the engine with the air filter
element removed. Doing so would allow
unfiltered air to enter, causing rapid en-
gine wear and possible engine damage.
Additionally, the fuel injection system
would be affected, re sulting in poor engine
performance and possible overheating.
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Tightening torque: Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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1. Remove the rear center passenger seatcushion. (See page 4-15 for seat cushion
removal and installation procedures.)
2. Lift up the rubber damper, and then re- move the rear center passenger seat by
removing the bolts.
3. Remove covers A and B by removing the quick fastener screws. 4. Remove the air filter case cover by un-
hooking the holders.1. Rear center passenger seat
2. Rubber damper
3. Bolt
1
2
3
3
1. Quick fastener screw
2. Cover A
3. Cover B
23
1
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5. Remove the air filter element.6. While pushing the projections on the air
filter frame inward, remove the air filter el-
ement holder.
7. Remove the sponge material from the air filter frame.1. Air filter case cover holder
2. Air filter case cover
1. Air filter element
2
1 1
1
1. Air filter element holder
2. Projection
1
2
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8. Wash the sponge material gently butthoroughly in parts cleaning solvent.
WARNING! Using gasoline or other flammable solvents to clean the air fil-
ter element can cause a fire or explo-
sion, which could lead to serious
injury.
[EWB03360]
9. Squeeze the excess solvent out of the
sponge material. NOTICE: Do not twist
the sponge material when squeezing
it.
[ECB00442]
10. Wash the sponge material in warm soapy
water to remove remaining solvent, then
rinse thoroughly with plain warm water.
11. Squeeze excess water out of the sponge
material. NOTICE: Do not twist the
sponge material when squeezing it.
[ECB00442]
12. Allow the sponge material to dry thor- oughly. Inspect the sponge material and
replace it if damaged.
1. Air filter element holder
2. Sponge material
3. Air filter frame
3
2
1
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13. Thoroughly apply Yamaha foam air filteroil or other quality liquid foam air filter oil
(not spray type) to the sponge material.
The sponge material should be wet but
not dripping.
14. Pull the sponge material over its frame.
15. Install the air filt er element holder.
16. Install the air filter element.
17. Fit the holders on the air filter case cover
onto the projections on the air filter case,
and then install the air filter case cover by
hooking the holders onto the cover. 18. Install cover A, then cover B in their orig-
inal positions by installing the quick fas-
tener screws.1. Holder
2. Projection
1
2
1. Cover A
1
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19. Install the seat by installing the bolts, and
then tighten the bolts to the specified
torque.
20. Place the rubber damper in the original position, and then install the rear center
passenger seat cushion.
EBU32430Cleaning the air filter case/duct check
hoseThere is a check hose at the bottom of the air
filter case under the cargo bed and a check
hose at the bottom of the air duct. The air
duct check hose can be accessed under the
vehicle. If dust or water collects in a check
hose, empty the hose and clean the air filter
element and air filter case.
1. Cover BTightening torque:Rear center passenger seat bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)
1
1. Air filter case check hose
1
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EBU32440V-belt case drain plugThe V-belt case drain plug is located under
the cargo bed. (See page 4-24 for cargo bed
lifting and lowering procedures.)
After riding in water deep enough to allow wa-
ter to enter the V-belt case, remove the drain
plug to drain any water from the case.
If water drains from the V-belt case after re-
moving the drain plug, have a Yamaha dealer
inspect the vehicle, as the water may affect
other engine parts.
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.
1. Air duct check hose
1
1. V-belt case drain plug
1
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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. 4. Install the gasket, and then insert the tail-
pipe into the muffler and align the bolt
holes.
5. Install the bolts and tighten them to the
specified torque.1. Tailpipe bolt
1
1
1. Gasket
2. Spark arrester
3. TailpipeTightening torque:
Tailpipe bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
3
2
1
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