oil level YAMAHA GRIZZLY 450 2015 User Guide

8-24
8
EBU23427Differential gear oilThe differential gear case must be checked for oil
leakage before each ride. If any leakage is found,
have a Yamaha dealer check and repair the ATV.
In addition, the differential gear oil level must be
checked and the oil changed as follows at the in-
tervals specified in the periodic maintenance and
lubrication chart.
To check the differential gear oil level1. Place the ATV on a level surface.
2. Remove the differential gear oil filler bolt and its gasket, and then check the oil level in the
differential gear case. The oil level should be
at the brim of the filler hole. 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 replace it if necessary.
5. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil levelTightening torque:Differential gear oil filler bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)
1
2
3
4
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8-25
8
To change the differential gear oil
1. Place the ATV 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 from the differential gear case.
4. Install the drain bolt and its new gasket, and then tighten the bolt to the specified torque. 5. Refill with the recommended differential gear
oil to the brim of the filler hole as shown.
NOTICE: Be sure no foreign material en-
ters the differential gear case.
[ECB00412]
6. Check the oil filler bolt gasket for damage, and replace it if necessary.
7. Install the oil filler bolt and its gasket, and then tighten the bolt to the specified torque.
1. Differential gear oil drain bolt
2. GasketTightening torque:Differential gear oil drain bolt:9.8 Nm (0.98 m·kgf, 7.1 ft·lbf)
12
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil levelRecommended differential gear oil: See page 10-1.
1
2
3
4
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8-26
88. Check the differential gear case for oil leak-
age. If oil is leaking, check for the cause.
EBU23471CoolantThe coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.EBU27127To check the coolant level1. Place the ATV on a level surface.TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. 2. Check the coolant level in the coolant reser- voir.
TIPThe coolant should be between the minimum and
maximum level marks. 3. If the coolant is at or below the minimum levelmark, remove panel C to access the coolant
reservoir. (See page 8-10.)
4. Remove the coolant reservoir cap, add cool- ant or distilled water to the maximum level
mark, install the reservoir cap, and then install
the panel. NOTICE: If coolant is not avail-
able, use distilled water or soft tap water
instead. Do not use hard water or salt wa-
Tightening torque:
Differential gear oil filler bolt:23 Nm (2.3 m·kgf, 17 ft·lbf)1. Maximum level mark
2. Minimum level mark
1
2
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8-40
8
Insufficient brake fluid may allow air to enter
the brake system, reducing braking perfor-
mance.
 Clean the filler cap before removing. Use
only DOT 4 brake fluid from a sealed contain-
er.
 Use only the specified brake fluid; otherwise,
the rubber seals may deteriorate, causing
leakage.
 Refill with the same type of brake fluid. Add-
ing a brake fluid other than DOT 4 may result
in a harmful chemical reaction.
 Be careful that water does not enter the
brake fluid reservoir when refilling. Water will
significantly lower the boiling point of the flu-
id and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces or
plastic parts. Always clean up spilled fluid im-
mediately. As the brake pads wear, it is normal for the brake
fluid level to gradually go down. A low brake fluid
level may indicate worn brake pads and/or brake
system leakage; therefore, be sure to check the brake pads for wear and the brake system for
leakage. If the brake fluid level goes down sud-
denly, have a Yamaha dealer check the cause be-
fore further riding.
EBU24283Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in the periodic maintenance
and lubrication chart. In addition, have the oil seals
of the brake master cylinder and calipers as well
as the brake hoses replaced at the intervals listed
below or whenever they are damaged or leaking.

Oil seals: Replace every two years.
 Brake hoses: Replace every four years.EBU24395Checking the front brake lever free
playThe brake lever free play must be checked at the
intervals specified in the periodic maintenance
and lubrication chart. The brake lever should have
no free play as shown. If there is free play, have a
Yamaha dealer check the brake system.
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10-1
10
EBU25962
SPECIFICATIONS
Dimensions:Overall length:1993 mm (78.5 in)
Overall width: 1093 mm (43.0 in)
Overall height:
1120 mm (44.1 in)
Seat height: 840 mm (33.1 in)
Wheelbase: 1233 mm (48.5 in)
Ground clearance:
245 mm (9.6 in)
Minimum turning radius: 3000 mm (118 in)Weight:Curb weight:
YFM450DF 275.0 kg (606 lb) (AUS)(NZL)
YFM450DF 276.0 kg (608 lb) (EUR)(FRA)(GBR)
YFM450PF 281.0 kg (619 lb) (AUS)(NZL)
YFM450PF 282.0 kg (622 lb) (EUR)(FRA)(GBR)
YFM450PHF 282.0 kg (622 lb)Noise and vibration level:Noise level (77/311/EEC):YFM450DF 78.3 dB(A) (EUR)(FRA)(GBR)
YFM450PF 78.3 dB(A) (EUR)(FRA)(GBR)
YFM450PHF 78.3 dB(A) Vibration on seat (EN1032, ISO5008):
YFM450DF 0.6 m/s² (EUR)(FRA)(GBR)
YFM450PF 0.6 m/s² (EUR)(FRA)(GBR)
YFM450PHF 0.6 m/s²
Vibration on handle (EN1032, ISO5008): YFM450DF Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
YFM450PF Will not exceed 2.5 m/s² (EUR)(FRA)(GBR)
YFM450PHF Will not exceed 2.5 m/s²
Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement: 421 cm³
Bore × stroke:
84.5 × 75.0 mm (3.33 × 2.95 in)
Compression ratio:
10.0 : 1
Starting system: Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:YAMALUBE
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10-2
10
Type:SAE 5W-30, 10W-30, 10W-40, 15W-40, 20W-40 or 20W-
50
Recommended engine oil grade: API service SG type or higher, JASO standard MA
Engine 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)Final gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil
Quantity: 0.38 L (0.40 US qt, 0.33 Imp.qt)
Differential gear oil:Type:Yamaha Friction Modified Shaft Drive Gear Oil or SAE 80
API GL-4 Hypoid gear oil
Quantity: 0.23 L (0.24 US qt, 0.20 Imp.qt)Cooling system:Coolant reservoir capacity (up to the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes): 1.32 L (1.40 US qt, 1.16 Imp.qt)Air filter:Air filter element:Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity: 15.0 L (3.96 US gal, 3.30 Imp.gal)
Fuel reserve amount: 4.5 L (1.19 US gal, 0.99 Imp.gal)Carburetor:Type × quantity:
BSR33 x 1Spark plug (s):Manufacturer/model:
NGK/DR8EA
Spark plug gap: 0.6–0.7 mm (0.024–0.028 in)
0 10 30 50 70 90 110 130 F
–20 –10 0 10 20 30 40 50 CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
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12-1
12
INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-24
Air filter element, cleaning ............................................ 8-30
Axle boots .................................................................... 8-46BBattery .......................................................................... 8-52
Brake fluid, changing ...................................................8-40
Brake fluid level, checking ........................................... 8-39
Brake lever free play, checking the front ..................... 8-40
Brake lever, front .......................................................... 4-14
Brake levers, checking and lubricating ........................ 8-48
Brake light switches ..................................................... 8-47
Brake pads and friction plates, checking ..................... 8-38
Brake pedal and rear brake lever ................................. 4-14
Brake pedal, checking and lubricating ........................ 8-49
Brakes .......................................................................... 8-38
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-48
Carburetor, adjusting ...................................................8-35
Carrier, front ................................................................. 4-22
Carrier, rear .................................................................. 4-22
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant ................................................................. 5-3, 8-26
Coolant temperature warning light ................................. 4-3DDifferential gear oil ............................................... 5-3, 8-24Drive select lever .......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-3
Drive select lever safety system cable, adjusting ........ 8-38
Drive shaft universal joint, lubricating .......................... 8-50
EEngine break-in .............................................................. 6-5
Engine, cold start ........................................................... 6-1
Engine idling speed ...................................................... 8-35
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-16
Engine, starting a warm ................................................. 6-3
Engine stop switch ......................................................... 4-7
EPS warning light (for EPS model) ................................. 4-3FFinal gear oil ......................................................... 5-3, 8-21
Four-wheel-drive/differential gear lock indicator ........... 4-4
Fuel ...................................................................... 4-15, 5-3
Fuel cock ...................................................................... 4-17
Fuel gauge ..................................................................... 4-6
Fuel tank cap ............................................................... 4-15
Fuses, replacing ........................................................... 8-55HHandlebar switches ....................................................... 4-7
Headlight beam, adjusting ........................................... 8-59
Headlight bulb, replacing ............................................. 8-58
High-range indicator light .............................................. 4-2
Horn switch .................................................................... 4-7IIdentification numbers ................................................. 11-1
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