2018 YAMAHA WOLVERINE Owners Manual

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7. If the engine oil is at or below the mini-mum level mark, add oil a little at a time
so as not to overfill beyond the maximum
level mark. 8. Install the dipstick with the arrow pointing
in the direction shown.1. Oil filler tube
2. Arrow mark
2
1
1. Engine oil dipstick
2. Arrow mark
1
2
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9. Install the rubber cover.
10. Install the passenger seat cushion.
To change the engine oil (and filter)
1. Park the vehicle on a level surface.
2. Start the engine, warm it up for several minutes, and then turn it off.
3. Remove the passenger seat cushion. (See page 4-15.)
4. Remove the rubber cover.
5. Remove the engine oil dipstick.
6. Place an oil pan under the engine to col- lect the used oil.
7. Remove the engine oil drain bolt. Discard the used gasket.
TIPPerform steps 8–10 when replacing the oil fil-
ter cartridge. 8. Remove the oil filter cartridge.1. Engine oil drain bolt
2. Gasket
1 2
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TIPAn oil filter wrench is available from your
Yamaha dealer.
 Make sure the old O-ring is not stuck to the
crankcase. 9. Apply a light coat of clean engine oil to
the O-ring of the new oil filter cartridge.
TIPMake sure that the O-ring is properly seated. 10. Install the new oil filter cartridge with an oil filter wrench, and then tighten it to the
specified torque with a torque wrench.
1. Oil filter wrench
2. Oil filter cartridge
1
2
1. O-ringTightening torque:Oil filter cartridge:14 N·m (1.4 kgf·m, 10 lb·ft)
1
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11. Install the engine oil drain bolt with a newgasket, and then tighten the bolt to the
specified torque.
12. Pour the specified amount of engine oil into the oil filler tube. 13. Install the dipstick with the arrow pointing
in the direction shown.1. Torque wrench
2. Oil filter wrenchTightening torque:Engine oil drain bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
1
2
1. Engine oil dipstick
2. Arrow mark
1
2
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TIPBe sure to wipe off spilled oil on any parts af-
ter the engine and exhaust system have
cooled down. 14. Start the engine, and then let it idle forseveral minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and check for the cause.
15. Turn the engine off, wait at least 10 minu-
tes, and then check the oil level and cor-
rect it if necessary.
16. Install the rubber cover.
17. Install the passenger seat cushion.EBU36051Final gear oilCheck the oil level and change the final gear
oil at the intervals specified in the general
maintenance and lubrication chart.
NOTICEECB03590When checking or changing the final gear
oil, make sure that no foreign material en-
ters the final gear case. If necessary, clean
the final gear oil filler bolt and surrounding
area. Checking the final gear oil level 1. Park the vehicle on a level surface.
2. Remove the final gear oil filler bolt and its
gasket, and then check the oil level in the
final gear case. The oil level should be at
the brim of the filler hole.
Recommended oil:SAE 80 API GL-4 Hypoid gear oil
Oil quantity: 0.64 L (0.68 US qt, 0.56 Imp.qt)
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3. If the oil is below the brim of the filler hole,add sufficient oil of the recommended
type to raise it to the correct level.
4. Check the gasket for damage, and re- place it if necessary.
5. Install the oil filler bolt and its gasket, and
then tighten the bolt to the specified
torque. Changing the final gear oil
1. Park the vehicle on a level surface.
2. Place an oil pan under the final gear case
to collect the used oil.
3. Remove the final gear oil filler bolt, the fi-
nal gear oil drain bolt and their gasket to
drain the oil.1. Final gear oil
2. Gasket
3. Final gear oil filler bolt
4. Correct oil level
24
3
1
Tightening torque:Final gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)1. Final gear oil drain bolt
2. Gasket
21
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4. Install the drain bolt and its new gasket,and then tighten the bolt to the specified
torque.
5. Refill with the recommended final gear oil up to the brim of the filler hole.TIPGL-4 is a quality and additive rating; GL-5
rated hypoid gear oils may also be used.
 If desired, an SAE 80W-90 hypoid gear oil
may be used instead. 6. Check the oil filler bolt gasket for dam-
age, and replace it if necessary.
7. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified
torque. 8. Check for oil leakage. If oil leakage is
found, check for the cause.
EBU36061Differential gear oilCheck the oil level and change the differential
gear oil at the intervals specified in the gener-
al maintenance and lubrication chart.NOTICEECB03600When checking or changing the differen-
tial gear oil, make sure that no foreign ma-
terial enters the differential gear case. If
necessary, clean the differential gear oil
filler bolt and surrounding area.
Tightening torque:Final gear oil drain bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
Tightening torque: Final gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
Recommended oil: SAE 80 API GL-4 Hypoid gear oil
Oil quantity: 0.18 L (0.19 US qt, 0.16 Imp.qt)
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Checking the differential gear oil level1. Park the vehicle on a level surface.
2. Remove the differential gear oil filler bolt
and its gasket, and then check the oil lev-
el. It should be up to the brim of the filler
hole.
3. If the level is low, add sufficient oil of the recommended type to raise it to the
specified level. 4. Check the gasket for damage, and re-
place it if necessary.
5. Install the differential gear oil filler bolt and its gasket, and then tighten the bolt
to the specified torque.
Changing the differential gear oil 1. Park the vehicle on a level surface.
2. Place an oil pan under the differential gear case to collect the used oil.
3. Remove the differential gear oil filler bolt, the differential gear oil drain bolt and their
gasket to drain the oil.1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Tightening torque:Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
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