2015 YAMAHA WOLVERINE cooling

6-1
6
EBU31870
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 min-
utes after every hour of operation. Vary the
speed of the vehicle from time to time. Do not
operate it at one set throttle position.U2MB7AE0.book Page 1 Thursday, January 29, 2015 3:42 PM

8-6
8
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. √√√√√
U2MB7AE0.book Page 6 Thursday, January 29, 2015 3:42 PM

8-26
8
6. Place a container under the coolant res-ervoir to collect the used coolant.
7. Remove the coolant reservoir cap. 8. Disconnect the coolant reservoir hose,
and then drain the coolant from the cool-
ant reservoir.
9. After draining the coolant, thoroughly flush the cooling system with clean tap
water.
10. Install the coolant drain bolt and its new gasket and then tighten the bolt to the
specified torque.1. Coolant drain bolt
2. Gasket
1 2
1. Coolant reservoir cap
2. Coolant reservoir hose
12
U2MB7AE0.book Page 26 Thursday, January 29, 2015 3:42 PM

8-29
8
22. 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.
23. 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.
24. Start the engine, and then check for cool- ant leakage.TIPIf any leakage is found, have a Yamaha dealer
check the cooling system. 25. 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. Front axle boot
1. Rear axle boot
1
1
1
1
U2MB7AE0.book Page 29 Thursday, January 29, 2015 3:42 PM

8-60
8
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.
TIPIf it is difficult to get the recommended coolant, tap water can be used temporarily, provided that
it is changed to the recommende d coolant as soon as possible. Wait until the
engine has cooled.
Check the coolant level 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 overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
U2MB7AE0.book Page 60 Thursday, January 29, 2015 3:42 PM