2018 YAMAHA WOLVERINE cooling

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EBU31872
OPERATION
EBU31880Read the Owner’s Manual carefully to be-
come familiar with all controls. If there is a
control or function you do not understand,
ask your Yamaha dealer.
WARNING
EWB03290Failure to familiarize yourself with the con-
trols can lead to loss of control, which
could cause an accident or injury. EBU31890Engine break-inThere is never a more important period in the
life of your vehicle than the period between 0
and 20 hours.
For this reason, we ask that you read the fol-
lowing material carefully. Because the engine
is brand new, you must not put an excessive
load on it for the first several hours of opera-
tion. During the first 20 hours, the variousparts in the engine wear and polish them-
selves to achieve the correct operating clear-
ances.
During this period, prolonged full-throttle op-
eration or any condition that might result in
excessive engine heating must be avoided.
However, momentary (2–3 seconds maxi-
mum) full-throttle operation under load does
not harm the engine.
Each full-throttle acceleration sequence
should be followed with a substantial rest pe-
riod for the engine, by cruising at lower r/min
so the engine can rid itself of the temporary
build-up of heat. If any abnormality is noticed
during this period, consult a Yamaha dealer.
0–10 hours:
Avoid continuous operation above 1/2-throt-
tle. Allow a cooling-off period of 5 to 10 minu-
tes after every hour of operation. Vary the
speed of the vehicle from time to time. Do not
operate it at one set throttle position.UB3D7AE0.book Page 1 Tuesday, November 7, 2017 9:38 AM

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EBU32114General maintenance and lubricationNO. ITEMROUTINE INITIAL
EVERY
Whichev- er comes first month 1 3 6 6 12
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.
√√√√√
• Change 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 • Change (warm engine before draining). √√√√
4 Engine oil filter
cartridge • Replace.
√√√
5 Final gear oil • Check oil level.
√√√√√
• Change. √√
6 Differential gear
oil • Check oil level.
√√√√√
• Change. √√
7 *Front brake • Check operation/brake pad wear/fluid leak-
age.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
UB3D7AE0.book Page 6 Tuesday, November 7, 2017 9:38 AM

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6. Remove the coolant reservoir cap.7. Place a container under the coolant res-
ervoir.
8. Disconnect the coolant reservoir hose and drain the reservoir.
9. After draining both the radiator and the
reservoir, thoroughly flush the cooling
system with clean tap water.
10. Install the coolant drain bolt with a new
gasket, and then tighten to the specified
torque.1. Coolant drain bolt
2. Gasket
1 2
1. Coolant reservoir cap
2. Coolant reservoir hose
12
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18. When coolant begins to flow out, tightenthe bleed bolt.
19. Start the engine and let it idle for ten mi- nutes.TIPWhile the engine is idling, check the cooling
system for leaks.
20. Rev the engine five times, then stop theengine and allow it to cool.TIPWhile waiting for the engine to cool, clean up
the used coolant and prepare it for disposal
according to local regulations. 21. When the engine is cool, remove the radi-
ator cap and check the coolant level in
the radiator. WARNING! Never attempt
to remove the radiator cap when the
engine is hot.
[EWB04250]
If necessary, add
coolant until the radiator is full. Install the
radiator cap.
22. Check the coolant level in the reservoir and replenish if necessary.
23. 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.
1. Cylinder head air bleed boltTightening torque: Cylinder head air bleed bolt:10 N·m (1.0 kgf·m, 7.4 lb·ft)
1
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Engine overheating
Wait for the engine to cool before removing the radiator cap. WARNING! If the engine is not
cool when removing the radiator cap, hot fluid and steam could blow out under pressure
and burn you.
[EWB03460]
Place a thick rag over the cap and remove the cap slowly to allow any re-
maining pressure to escape.
TIP Tap water can be used in an emergency. Change to the recommended coolant as soon as
possible.
 The engine will tend to overheat if the radiator is caked with mud, or if air was not properly bled
from the cooling system. Wait until the
engine has cooled.
Check the coolant le vel in the
coolant reservoir and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See TIP.)
Restart the engine. If the engine o verheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
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