2016 YAMAHA WOLVERINE Owners Manual

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17. When coolant begins to flow out of thebolt hole, tighten the water pump air
bleed bolt to the specified torque.
18. Loosen the cylinder head air bleed bolt, without removing it, to allow all of the air
to escape from the air bleed bolt hole. 19. When coolant begins to flow out of the
bolt hole, tighten the cylinder head air
bleed bolt to the specified torque.
20. Start the engine and let it idle for ten mi- nutes.
21. Rev the engine five times.
22. Pour additional coolant into the radiator until it is full.1. Water pump air bleed boltTightening torque:Water pump air bleed bolt:8 Nm (0.8 m·kgf, 5.8 ft·lbf)
1
1. Cylinder head air bleed boltTightening torque: Cylinder head air bleed bolt:10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
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23. Stop the engine and allow it to cool. If thecoolant level has dropped after the en-
gine has cooled, add sufficient coolant
until it reaches the top of the radiator, and
then install the radiator cap.
24. Check the coolant level in the reservoir. If necessary, remove the coolant reservoir
cap, add coolant to the maximum level
mark, and then install the cap.
25. Start the engine, and then check for cool- ant leakage.TIPIf any leakage is found, have a Yamaha dealer
check the cooling system. 26. Install the center bottom panel by install-
ing the bolts, and then tightening them to
the specified torque.
27. Install the panels and the hood.
EBU32400Axle bootsCheck the axle boots for holes or tears.
If any damage is found, have them replaced
by a Yamaha dealer.
Tightening torques: Center bottom panel bolt9 Nm (0.9 m·kgf, 6.5 ft·lbf)
1. Front axle boot
1
1
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EBU33570Spark plug inspectionRemoval1. Remove the spark plug cap. 2. Use the spark plug wrench in the tool kit
to remove the spark plug as shown.1. Rear axle boot
1
1
1. Spark plug cap
1. Spark plug wrench
1
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 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.
Measure the spark plug gap with a wire thick-
ness gauge and, if necessary, adjust the gap
to specification.Installation
1. 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-Specified spark plug:NGK/CPR7EA-9
1. Spark plug gapSpark plug gap:0.8–0.9 mm (0.031–0.035 in)
1
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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.
EBU33580Cleaning 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. Ea ch 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. 1. Remove the storage compartment locat- ed between the driver seat and the pas-
senger seat as shown.
Tightening torque:Spark plug:11 Nm (1.1 m·kgf, 8.0 ft·lbf)
1. Storage compartment
1
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2. Remove the air filter case cover by un-hooking the holders.
3. Remove the air filter element. 4. While pushing the projections on the air
filter frame inward, remove the air filter el-
ement holder.1. Air filter case cover
2. Air filter case cover holder
1
2
2
1. Air filter element
1
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5. Remove the sponge material from the airfilter frame. 6. Wash the sponge material gently but
thoroughly 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]
7. Squeeze the excess solvent out of the
sponge material. NOTICE: Do not twist
the sponge material when squeezing
it.
[ECB00442]
1. Air filter element holder
2. Projection
1
2
1. Air filter element holder
2. Sponge material
3. Air filter frame
3
2
1
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8. Wash the sponge material in warm soapywater to remove remaining solvent, then
rinse thoroughly with plain warm water.
9. Squeeze excess water out of the sponge
material. NOTICE: Do not twist the
sponge material when squeezing it.
[ECB00442]
10. Allow the sponge material to dry thor- oughly. Inspect the sponge material and
replace it if damaged. 11. Thoroughly apply Yamaha foam air filter
oil or other quality liquid foam air filter oil
(not spray type) to the sponge material.
The sponge material should be wet but
not dripping.
12. Pull the sponge material over its frame.
13. Install the air filter element holder.
14. Install the air filter element.
15. 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.
1. Holder
2. Projection
1
2
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