Page 22 of 457

1-6
springlip
oil
grease lip
IMPORTANT INFORMATION
GEN
INFO
EAS00020
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND
DISASSEMBLY
1. Before removal and disassembly, eliminate
all dirt, mud, dust and foreign material.
2. Use only the proper tools and cleaning
equipment.
Refer to the “SPECIAL TOOLS”.
3. When disassembling, always keep mated
parts together. This includes gears, cylin-
ders, pistons and other parts that have been
“mated” through normal wear. Mated parts
must always be reused or replaced as an as-
sembly.
4. During disassembly, clean all of the parts
and place them in trays in the order of disas-
sembly. This will speed up assembly and al-
low for the correct installation of all parts.
5. Keep all parts away from any source of fire.
EAS00021
REPLACEMENT PARTS
Use only genuine Yamaha parts for all replace-
ments. Use oil and grease recommended by
Yamaha for all lubrication jobs. Other brands
may be similar in function and appearance, but
inferior in quality.
EAS00022
GASKETS, OIL SEALS AND O-RINGS
1. When overhauling the engine, replace all
gaskets, seals and O-rings. All gasket sur-
faces, oil seal lips and O-rings must be
cleaned.
2. During reassembly, properly oil all mating
parts and bearings and lubricate the oil seal
lips with grease.
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Page 30 of 457

2-2
ENGINE SPECIFICATIONSSPEC
2
ENGINE SPECIFICATIONS
ItemStandardLimit
Engine
Engine type
Displacement
Cylinder arrangement
Bore stroke
Compression ratio
Engine idling speed
Vacuum pressure at engine idling
speed
Standard compression pressure
(at sea level)
Liquid-cooled, 4-stroke, DOHC
998 cm3 (60.90 cu.in)
Forward-inclined parallel 4-cylinder
77.0 53.6 mm (3.03 2.11 in)
12.4 : 1
1,150 1,250 r / min
22 kPa (165 mmHg, 6.5 inHg)
1,480 kPa (14.80 kg / cm
2,14.80 bar,
210.5 psi) at 350 r / min
Fuel
Recommended fuel
Fuel tank capacity
Total (including reserve)
Reserve only
Premium unleaded gasoline only
18 L (3.96 Imp gal, 4.76 US gal)
3.4 L (0.75 Imp gal, 0.90 US gal)
Engine oil
Lubrication system
Recommended oil
Quantity
Total amount
Without oil filter cartridge
replacement
With oil filter cartridge replacement
Oil pressure
Engine oil temperature
Relief valve opening pressure
Wet sump
At 5C (40F) or higher
Yamalube 4 (20W40) or SAE 20W40
type SE motor oil
At 15C (60F) or lower
Yamalube 4 (10W30) or SAE 10W30
type SE motor oil
3.8 L (3.35 Imp qt, 4.02 US qt)
2.9 L (2.55 Imp qt, 3.07 US qt)
3.1 L (2.73 Imp qt, 3.28 US qt)
230 kPa at 5,000 r / min
(2.3 kg / cm
2 at 5,000 r / min)
(2.3 bar at 5,000 r / min)
(32.7 psi at 5,000 r / min)
100C (212F)
600 680 kPa (6.0 6.8 kg / cm
2,
6.0 6.8 bar, 87.0 98.6 psi)
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2-13
CHASSIS SPECIFICATIONSSPEC
ItemStandardLimit
Front suspension
Suspension type
Front fork type
Front fork travel
Spring
Free length
Spacer length
Installed length
Spring rate (K1)
Spring stroke (K1)
Inner tube outer diameter
Inner tube bending limit
Optional spring available
Fork oil
Recommended oil
Quantity (each front fork leg)
Level (from the top of the outer
tube, with the outer tube fully
compressed, and without the
fork spring)
Spring preload adjusting positions
Minimum
Standard
Maximum
Rebound damping adjusting
positions
Minimum*
Standard*
Maximum*
Compression damping adjusting
positions
Minimum*
Standard*
Maximum*
*from the fully turned-in position
Telescopic fork
Coil spring / oil damper
120 mm (4.72 in)
236.5 mm (9.31 in)
100 mm (3.937 in)
222.5 mm (8.76 in)
8.83 N / mm (0.90 kg / mm, 50.42 lb / in)
0 120 mm (0 4.7244 in)
43 mm (1.69 in)
No
Suspension oil “01”
0.53 L (0.47 Imp qt, 0.56 US qt)
76 mm (2.99 in)
8
4.5
1
26
10
1
25
10
1
231.8 mm
(9.13 in)
0.2 mm
(0.01 in)
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3-26
MEASURING THE COMPRESSION PRESSURE /
CHECKING THE ENGINE OIL LEVELCHK
ADJ
13 Nm (1.3 mkg, 9.4 ftlb)
NOTE: d. If the compression pressure is below the
minimum specification, pour a teaspoonful of
engine oil into the spark plug bore and mea-
sure again.
Refer to the following table.
Compression pressure
(with oil applied into the cylinder)
ReadingDiagnosis
Higher than
without oilPiston ring(s) wear
or damage
Repair.
Same as without
oilPiston, valves,
cylinder head
gasket or piston
possibly defective
Repair.
6. Install:
spark plug
7. Install:
ignition coils
EAS00069
CHECKING THE ENGINE OIL LEVEL
1. Stand the motorcycle on a level surface.
Place the motorcycle on a suitable stand.
Make sure the motorcycle is upright.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Check:
engine oil level
The engine oil level should be between the
minimum level mark
a and maximum level
mark
b.
Below the minimum level mark Add the
recommended engine oil to the proper level.
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Page 104 of 457
3-27
CHECKING THE ENGINE OIL LEVEL
CHK
ADJ
NOTE:
NOTE:Recommended oil
AT 5C (40F) or higher
A
Yamalube 4 (20W40) or
SAE 20W40 type SE motor
oil
AT 1 5C (60F) or lower
B
Yamalube 4 (10W30) or
SAE 10W30 type SE motor
oil
Before checking the engine oil level, wait a few
minutes until the oil has settled.
4. Start the engine, warm it up for several min-
utes, and then turn it off.
5. Check the engine oil level again.
Before checking the engine oil level, wait a few
minutes until the oil has settled.
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3-29
CHANGING THE ENGINE OIL /
MEASURING THE ENGINE OIL PRESSURECHK
ADJ
43 Nm (4.3 mkg, 31 ftlb)
CAUTION:
Oil filter cartridge
17 Nm (1.7 mkg, 12 ftlb)
8. Replace:
engine oil drain bolt gasket
New
9. Install:
engine oil drain bolt
(along with the new gasket)
10. Fill:
crankcase
(with the specified amount of the recom-
mended engine oil)
Quantity
Total amount
3.8 L (3.35 Imp qt, 4.02 US qt)
Without oil filter cartridge
replacement
2.9 L (2.55 Imp qt, 3.07 US qt)
With oil filter cartridge
replacement
3.1 L (2.73 Imp qt, 3.28 US qt)
11. Install:
engine oil filler cap
bottom cowlings
Refer to “COWLINGS”.
12. Start the engine, warm it up for several min-
utes, and then turn it off.
EAS00077
MEASURING THE ENGINE OIL PRESSURE
1. Check:
engine oil level
Below the minimum level mark
a Add the
recommended engine oil to the proper level.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
When the engine is cold, the engine oil will
have a higher viscosity, causing the engine
oil pressure to increase. Therefore, be sure
to measure the engine oil pressure after
warming up the engine.
3. Remove:
bottom cowlings
Refer to “COWLINGS”.
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3-44
A
B
CHECKING THE BRAKE FLUID LEVEL
CHK
ADJ
NOTE:
WARNING
CAUTION:
NOTE:
EAS00115
CHECKING THE BRAKE FLUID LEVEL
1. Stand the motorcycle on a level surface.
Place the motorcycle on a suitable stand.
Make sure the motorcycle is upright.
2. Check:
brake fluid level
Below the minimum level mark
a Add the
recommended brake fluid to the proper level.
Recommended brake fluid
DOT 4
AFront brake
BRear brake
Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.
Refill with the same type of brake fluid that
is already in the system. Mixing brake
fluids may result in a harmful chemical
reaction, leading to poor brake perfor-
mance.
When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
In order to ensure a correct reading of the brake
fluid level, make sure the top of the brake fluid
reservoir is horizontal.
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3-50
a
b
ADJUSTING THE DRIVE CHAIN SLACK /
LUBRICATING THE DRIVE CHAINCHK
ADJ
NOTE:
DirectionDrive chain is tightened.
DirectionDrive chain is loosened.
To maintain the proper wheel alignment, adjust
both sides evenly.
d. Tighten both locknuts to specification.
Locknut
16 Nm (1.6 mkg, 12 ftlb)
e. Tighten the wheel axle nut to specification.
Wheel axle nut
150 Nm (15 mkg, 108 ftlb)
EAS00142
LUBRICATING THE DRIVE CHAIN
The drive chain consists of many interacting
parts. If the drive chain is not maintained proper-
ly, it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
motorcycle is used in dusty areas.
This motorcycle has a drive chain with small
rubber O-rings between each side plate. Steam
cleaning, high-pressure washing, certain sol-
vents, and the use of a coarse brush can dam-
age these O-rings. Therefore, use only kero-
sene to clean the drive chain. Wipe the drive
chain dry and thoroughly lubricate it with engine
oil or chain lubricant that is suitable for O-ring
chains. Do not use any other lubricants on the
drive chain since they may contain solvents that
could damage the O-rings.
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
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