maintenance YAMAHA GRIZZLY 450 2014 User Guide

8-4
8
6*Exhaust system Check for leakage and replac
e gasket(s) if neces-
sary.
Check for looseness and tighten all screw clamps and joints if necessary. √√√
7 Spark arrester Clean. √√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LC60E0.book Page 4 Friday, March 8, 2013 1:18 PM

8-5
8
EBU21866General maintenance and lubrication chart TIP●For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.●For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.●Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.NO.ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 Air filter element Clean and replace if necessary. Every 20–40 hours (more often in wet or
dusty areas)
2 *Front brake Check operation and correct if necessary.
Check fluid level and ATV for fluid leakage, and
correct if necessary. √√√√√
Replace brake pads. Whenever worn to the limit
3 *Rear brake Check operation and correct if necessary.
Check brake lever and pedal free play, and adjust
if necessary. √√√√√
Check brake friction plate wear and replace if nec- essary. √ √√√
U2LC60E0.book Page 5 Friday, March 8, 2013 1:18 PM

8-6
8
4*Brake hoses Check for cracks or other damage, and replace if
necessary. √√√√
Replace. Every 4 years
5 *Brake fluid Replace. Every 2 years
6 *Wheels Check runout and for damage, and replace if nec-
essary. √ √√√
7 *Tires Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if necessary. √ √√√
8 *Wheel hub bearings Check for looseness or damage, and replace if
necessary. √ √√√
9 *V- b e l t Check for wear, cracks or other damage, and re-
place if necessary. √ √√√
10 *Drive shaft univer-
sal joint
Lubricate with lithium-soap-based grease.
√√√
11 *Chassis fasteners Make sure that all nuts, bolts, and screws are
properly tightened. √√√√√
12 *Shock absorber as-
semblies Check operation and correct if necessary.
Check for oil leakage and replace if necessary.
√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LC60E0.book Page 6 Friday, March 8, 2013 1:18 PM

8-7
8
13*Stabilizer bushes Check for cracks or other damage, and replace if
necessary. √√√
14 *Rear knuckle pivots Lubricate with lithium-soap-based grease. √√√
15 *Steering shaft Lubricate with lithium-soap-based grease. √√√
16 *Steering system Check operation and repair or replace if damaged.
Check toe-in and adjust if necessary. √√√√√
17 *Engine mount Check for cracks or other damage, and replace if
necessary. √√√
18 *Axle boots Check for cracks or other damage, and replace if
necessary. √√√√√
19 Engine oil Change.
Check ATV for oil leakage, and correct if neces-
sary. √ √√√
20 Engine oil filter car-
tridge
Replace.
√√√
21 *Engine oil strainer Clean. √√√
22 Differential gear oil Change.
Check ATV for oil leakage, and correct if neces-
sary. √√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LC60E0.book Page 7 Friday, March 8, 2013 1:18 PM

8-8
8
23 Final gear oil Change.
Check ATV for oil leakage, and correct if neces-
sary. √ √√√
24 Cooling system Check coolant level and ATV for coolant leakage,
and correct if necessary. √√√√√
Replace coolant. Every 2 years
25 *Moving parts and
cables Lubricate.
√√√√
26 *Drive select lever
safety system cable Check operation and adjust or replace if neces-
sary. √√√
27 *Throttle lever Check operation.
Check throttle lever free play, and adjust if neces-
sary.
Lubricate cable and lever housing. √√√√√
28 *Front and rear brake
switches Check operation and correct if necessary.
√√√√√
29 *Lights and switches Check operation and correct if necessary.
Adjust headlight beams.
√√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320U2LC60E0.book Page 8 Friday, March 8, 2013 1:18 PM

8-9
8
EBU28391TIP●Some maintenance items need more frequent service 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.
Every two years replace the internal components of the brake master cylinder and calipers, and changethe brake fluid.
Replace the brake hoses every four years and if cracked or damaged.
U2LC60E0.book Page 9 Friday, March 8, 2013 1:18 PM

8-10
8
EBU23090Removing and installing panels The panels shown need to be removed to perform
some of the maintenance jobs described in this
chapter. Refer to this section each time a panel
needs to be removed and installed.
EBU30261Panels A and C
To remove a panel1. Remove the seat. (See page 4-18.)
2. Pull outward on the areas shown, and thenpull upward as shown.
1. Panel A
1. Panel B
2. Panel C
3. Panel D
4. Panel E
U2LC60E0.book Page 10 Friday, March 8, 2013 1:18 PM

8-14
8To install the panel
Place the panel in the original position and install
the bolts.
Panel E
To remove the panelPull outward on the areas shown.
To install the panelPlace the panel in its original position.
EBU23223Checking the spark plug The spark plug is an important engine component,
which is easy to check. Since heat and deposits
will cause any spark plug to slowly erode, the spark
plug should be removed and checked in accor-
dance with the periodic maintenance and lubrica-
tion chart. In addition, the condition of the spark
plug can reveal the condition of the engine.
To remove the spark plug
1. Remove panel A. (See page 8-10.)
2. Remove the spark plug cap.
1. Panel E
1
U2LC60E0.book Page 14 Friday, March 8, 2013 1:18 PM

8-17
8
EBU30240Engine oil and oil filter cartridge The engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter cartridge replaced at the intervals spec-
ified in the periodic maintenance and lubrication
chart.
To check the engine oil level1. Place the ATV on a level surface.
2. Remove panel E. (See page 8-10.)
3. Check the engine oil level on a cold engine.TIPIf the engine was started before checking the oil
level, be sure to warm up the engine sufficiently,
and then wait at least ten minutes until the oil set-
tles for an accurate reading.4. Remove the engine oil filler cap, and then wipe the engine oil dipstick off with a clean
rag. 5. Insert the dipstick into the filler hole (without
screwing it in), and then remove it again to
check the oil level.
TIPThe engine oil should be between the tip of the dip-
stick and the maximum level mark.1. Engine oil filler cap
U2LC60E0.book Page 17 Friday, March 8, 2013 1:18 PM

8-21
8
12. Refill with the specified amount of the recom-
mended engine oil, and then install and tight-
en the engine oil filler cap.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down.NOTICEECB00300●In order to prevent clutch 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 labeled “ENERGY CONSERV-
ING II” or higher.
●Make sure that no foreign material enters the
crankcase.13. Start the engine, and then let it idle for severalminutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
14. Turn the engine off, wait at least ten minutes, and then check the oil level and correct it if
necessary.
15. Install panel E.EBU30270Final gear oil The final gear case must be checked for oil leak-
age before each ride. If any leakage is found, have
a Yamaha dealer check and repair the ATV. In ad-
dition, the final gear oil level must be checked and
the oil changed as follows at the intervals specified
in the periodic maintenance and lubrication chart.
To check the final gear oil level 1. Place the ATV on a level surface.
2. Remove the final gear oil filler bolt and its gas- ket, 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:
See page 10-1.
Oil quantity: Without oil filter cartridge replacement:2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter cartridge replacement: 2.40 L (2.54 US qt, 2.11 Imp.qt)
U2LC60E0.book Page 21 Friday, March 8, 2013 1:18 PM