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9-21
95. Insert the dipstick completely into the oil filler
hole, and then remove it again to check the oil
level.
TIPThe engine oil should be between the minimum
and maximum level marks.
6. If the engine oil is at or below the minimumlevel mark, add sufficient oil of the recom-
mended type to raise it to the correct level.
NOTICE: Be sure the engine oil is at the
correct level, otherwise engine damage
may result.
[ECB00852]
7. Insert the dipstick completely into the oil filler hole.
8. Install the access cover by turning it clock- wise.
1. Engine oil dipstick
1. Maximum level mark
2. Minimum level mark
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9-25
9Yamaha’s experience gained over many years of
research and development into oil since the
1960’s helps make Yamalube the best choice for
your Yamaha engine.
EBU27309Final gear oilThe 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 speci-
fied in the periodic maintenance chart.
To check the final gear oil level 1. Park the ATV on a level surface. 2. Remove the final gear oil level check 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 check hole.
3. If the oil is below the brim of the check hole, remove the final gear oil filler bolt and its gas-
ket, and then add sufficient oil of the recom-
mended type to raise it to the correct level.
1. Final gear oil
2. Gasket
3. Final gear oil level check bolt
4. Correct oil level
1
243
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9-28
9
To check the differential gear oil level
1. Park 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.
To change the differential gear oil 1. Park 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.
1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Tightening torque: Differential gear oil filler bolt:23 N
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9-45
9brake pads for wear and the brake system for
leakage. If the brake fluid level suddenly goes
down, have a Yamaha dealer check the brake sys-
tem before further riding.
WARNING
EWB02721Improper maintenance can result in loss of
braking ability. Observe these precautions:
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.
EBU24294Changing the brake fluidHave a Yamaha dealer change the brake fluid at
the intervals specified in the periodic maintenance
chart. In addition, have the oil seals of the master
cylinders 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.
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11-2
11
Engine:Combustion cycle:4-stroke
Cooling system:
Liquid cooled
Valve train: SOHC
Number of cylinders: Single cylinder
Displacement:
686 cm³
Bore × stroke:
102.0 × 84.0 mm (4.02 × 3.31 in)
Compression ratio: 10.0 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
SAE viscosity grades:5W-30, 10W-30, 10W-40, 15W-40, 20W-40, 20W-50 Recommended engine oil grade:
API service SG type or higher, JASO standard MA
Quantity: Oil change:2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter removal: 2.10 L (2.22 US qt, 1.85 Imp.qt)
Final gear oil:Type:Yamaha Friction Modified Plus Shaft Drive Oil (Part No.:
ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)Differential gear oil:Type:
Yamaha Friction Modified Plus Shaft Drive Oil (Part No.: ACC-SHAFT-PL-32) or SAE 80 API GL-4 Hypoid gear oil0 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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11-3
11
Quantity:0.21 L (0.23 US qt, 0.19 Imp.qt)Coolant quantity:Radiator (including all routes):
1.99 L (2.10 US qt, 1.75 Imp.qt)
Coolant reservoir (up to the maximum level mark): 0.24 L (0.25 US qt, 0.21 Imp.qt)Air filter:Air filter element:
Wet element
Air filter oil grade: Foam air-filter oilFuel:Recommended fuel:
Regular unleaded gasoline (Gasohol [E10] acceptable)
Minimum research octane: 91
Fuel tank capacity: 18 L (4.8 US gal, 4.0 Imp.gal)
Fuel reserve amount:
4.0 L (1.06 US gal, 0.88 Imp.gal)Throttle body:ID mark:B4F1Spark plug (s):Manufacturer/model:NGK/CPR7EA-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Drivetrain:Primary reduction ratio:1.000
Secondary reduction ratio:
10.142 (41/21 x 17/12 x 20/15 x 33/12)
Final drive: Shaft
Clutch type: Wet, centrifugal, shoe
Transmission type:
CVT automatic with reverse
Gear ratio: Transmission ratio:
2.380–0.700 : 1
Reverse gear: 2.000 (23/14 x 28/23)
Low range: 1.938 (31/16)
High range:
1.148 (31/27)Front tire:Size:AT26 x 8-12 (BFE1, BFE8)
AT27 x 10-14 (BFEC, BFEG)
Manufacturer/model: MAXXIS/MU01Y (BFEC, BFEG)
MAXXIS/MU05Y (BFE1, BFE8)Rear tire:Size:
AT26 x 10-12 (BFE1, BFE8)
AT27 x 10-14 (BFEC, BFEG)
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11-4
11
Manufacturer/model:MAXXIS/MU01Y (BFEC, BFEG)
MAXXIS/MU06Y (BFE1, BFE8)Tire air pressure (measured on cold tires):No cargo or trailer:
Recommended: Front:
35.0 kPa (0.350 kgf/cm², 5.0 psi)
Rear: 30.0 kPa (0.300 kgf/cm², 4.4 psi) (BFE1, BFE8)
35.0 kPa (0.350 kgf/cm², 5.0 psi) (BFEC, BFEG)
Minimum: Front:
32.0 kPa (0.320 kgf/cm², 4.6 psi)
Rear: 27.0 kPa (0.270 kgf/cm², 4.0 psi) (BFE1, BFE8)
32.0 kPa (0.320 kgf/cm², 4.6 psi) (BFEC, BFEG)
With cargo or trailer:
Recommended:
Front:50.0 kPa (0.500 kgf/cm², 7.3 psi)
Rear:
50.0 kPa (0.500 kgf/cm², 7.3 psi)
Minimum: Front:
45.0 kPa (0.450 kgf/cm², 6.5 psi)
Rear: 45.0 kPa (0.450 kgf/cm², 6.5 psi)Front wheel:Rim size:
12 x 6.0 AT (BFE1, BFE8)
14 x 8.0 AT (BFEC, BFEG)
Rear wheel:Rim size:12 x 7.5 AT (BFE1, BFE8)
14 x 8.0 AT (BFEC, BFEG)Front brake:Type:
Hydraulic disc brakeRear brake:Type:Hydraulic disc brakeBrake fluid:Specified brake fluid:DOT 4Front suspension:Type:
Double wishbone
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
193 mm (7.6 in)Rear suspension:Type:Double wishbone
Spring:
Coil spring
Shock absorber: Hydraulic damper
Wheel travel: 232 mm (9.1 in)
UBFE60E0.book Page 4 Tuesday, August 18, 2020 10:50 AM