engine YAMAHA VIKING 2016 Owner's Guide

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EBU32110General maintenance and lubrication chartNO. ITEMROUTINE INITIAL
EVERY
Whichev- er comes
first month136612
km
(mi) 320
(200) 1200
(750) 2400
(1500) 2400
(1500) 4800
(3000)
hours 20 75 150 150 300
1 *Cooling system • Check coolant leakage.
• Repair if necessary.
√√√√√
• Replace coolant. Every 2 years
2 Air filter element •Clean.
• Replace if necessary. Every 20–40 hours (more often in
wet or dusty areas)
3Engine oil • Replace (warm engine before draining). √ √√√
4 Engine oil filter
cartridge • Replace.
√√√
5 Final gear oil/Dif-
ferential gear oil • Check oil level/oil leakage.
• Replace.
√√
6 *Front brake • Check operation/brake pad wear/fluid leak-
age/see page 8-8.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
7 *Rear brake • Check operation/brake pad wear/fluid leak-
age/see page 8-8.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
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EBU32330TIPSome maintenance items need more frequent serv ice if you are riding in unusually wet, dusty,
sandy or muddy areas, or at full throttle.
 Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.17 *Rear upper and
lower knuckle
pivots • Lubricate with lithium-soap-based grease.
√√√
18 *Drive shaft uni-
versal joint • Lubricate with lithium-soap-based grease.
√√√
19 *Engine mount • Check for cracks or damage.
• Check bolt tightness. √√√
20 *Front and rear
axle boots • Check for cracks or other damage, and re-
place if necessary. √√
21 *Fittings and fas-
teners • Check all chassis fittings and fasteners.
• Correct if necessary.
√√√√√
NO. ITEM
ROUTINE INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1200
(750) 2400
(1500) 2400
(1500) 4800
(3000)
hours 20 75 150 150 300UB427AE0.book Page 8 Monday, May 18, 2015 9:17 AM

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To install1. Insert the projections on the hood into the
slots in the front grill, and then place the
hood in the original position.
2. Turn the hood locks 1/4 turn counter- clockwise, and then push the tab on each
hood lock down so that it is pointing rear-
ward. Make sure that the hood is securely
installed.NOTICEECB02180Do not drive the vehicle with the hood
open, unlatched, or removed.
EBU33020Engine oil and oil filter cartridgeCheck engine oil level before each operation.
In addition, change the oi l and the oil filter car-
tridge at the intervals specified in the periodic
maintenance and lubrication chart.
To check the engine oil level
1. Park the vehicle on a level surface.
2. Check the engine oil level on a cold en- gine.TIPIf the engine was started before checking the
oil level, be sure to warm up the engine suffi-
ciently, and then wait at least 10 minutes until
the oil settles for an accurate reading. 3. Lift the cargo bed up. (See page 4-22 forcargo bed lifting and lowering proce-
dures.)
4. Remove the engine oil dipstick, and then
wipe it off with a clean rag.
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5. Insert the dipstick completely into the oilfiller hole, and then remove it again to
check the oil level.TIPThe engine oil should be between the mini-
mum and maximum level marks.
6. If the engine oil is at or below the mini-mum level mark, remove the right rear
panel by removing the quick fastener
screws and bolts, and then add sufficient
oil of the recommended type to raise it to
the correct level.
1. Engine oil dipstick
1
1. Maximum level mark
2. Minimum level mark
3. Oil filler hole1
2
3
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7. Insert the dipstick completely into the oilfiller hole, and then install the right rear
panel by installing the bolts and the quick
fastener screws.
8. Lower the cargo bed.
To change the engine oil (with or without
oil filter cartridge replacement) 1. Park the vehicle on a level surface.
2. Start the engine, warm it up for several
minutes, and then turn it off. 3. Lift the cargo bed up. (See page 4-22 for
cargo bed lifting and lowering proce-
dures.)
4. Remove the right rear panel by removing the quick fastener screws and bolts.
5. Place an oil pan under the engine to col- lect the used oil, and then remove the
dipstick.
6. Remove the engine oil drain bolt and its gasket to drain the oil from the crank-
case.1. Right rear panel
2. Quick fastener screw
3. Bolt
1
2
3
1. Right rear panel
2. Quick fastener screw
3. Bolt
1
2
3
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TIPSkip steps 7–9 if the oil filter cartridge is not
being replaced. 7. 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. 8. 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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9. Install the new oil filter cartridge with anoil filter wrench, and then tighten it to the
specified torque with a torque wrench. 10. Install the engine oil drain bolt and its new
gasket, and then tighten the bolt to the
specified torque.
11. Refill with the specified amount of recom- mended engine oil, and then insert the
dipstick completely into the oil filler hole.1. O-ringTightening torque:Oil filter cartridge:17 Nm (1.7 m·kgf, 12 ft·lbf)
1
1. Torque wrenchTightening torque: Engine oil drain bolt:30 Nm (3.0 m·kgf, 22 ft·lbf)
1
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TIPBe sure to wipe off spilled oil on any parts af-
ter the engine and exhaust system have
cooled down. NOTICEECB00301In order to prevent cl utch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do
not use oils with a diesel specification of
“CD” or oils of a higher quality than
specified. In addition, do not use oils la-
beled “ENERGY CONSERVING II” or
higher. 
Make sure that no foreign material en-
ters the crankcase.
12. Start the engine, and then let it idle for
several minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and check for the cause.
13. Turn the engine off, wait at least 10 min-
utes, and then check the oil level and cor-
rect it if necessary.
14. Install the right rear panel by installing the
bolts and the quick fastener screws.
15. Lower the cargo bed.EBU32370Final gear oilChecking 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 engine oil: See page 10-1.
Oil quantity: Without oil filter cartridge replacement:2.20 L (2.33 US qt, 1.94 Imp.qt)
With oil filter cartridge replacement: 2.30 L (2.43 US qt, 2.02 Imp.qt)
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4. Install the differential gear oil drain boltand its new gasket, and then tighten the
bolt to the specified torque.
5. Refill the differential gear case with the recommended oil. NOTICE: Be sure no
foreign material enters the differential
gear case.
[ECB00412]
6. Check the oil filler bolt gasket for dam- age, and replace it if necessary.
7. Install the differential gear 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.
EBU32990CoolantThe coolant level should be checked before
each ride.
Checking the coolant level1. Park the vehicle on a level surface.
2. Check the coolant level in the coolant reservoir when the engine is cold as the
coolant level varies with engine tempera-
ture.TIPThe coolant should be between the minimum
and maximum level marks.
Tightening torque:Differential gear oil drain bolt:9.8 Nm (0.98 m·kgf, 7.1 ft·lbf)
Recommended oil: SAE 80 API GL-4 Hypoid gear oil
Oil quantity: 0.18 L (0.19 US qt, 0.16 Imp.qt)
Tightening torque:Differential gear oil filler bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)
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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
UB427AE0.book Page 23 Monday, May 18, 2015 9:17 AM