Page 54 of 104

PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
NOTE:@ If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible. @
EAU04185
Engine 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 car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the motorcycle on the cen-
terstand.
NOTE:_ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. _2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.NOTE:_ The engine oil should be between the
minimum and maximum level marks. _4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level. Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf)
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
E_4br.book Page 7 Wednesday, July 25, 2001 1:40 PM
Page 75 of 104

PERIODIC MAINTENANCE AND MINOR REPAIR
6-28
6 EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for
15 minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
@
To charge the battery
Have a Yamaha dealer charge the bat-
tery as soon as possible if it seems to
have discharged. Keep in mind that the
battery tends to discharge more quickly
if the motorcycle is equipped with op-
tional electrical accessories.
To store the battery
1. If the motorcycle will not be used
for more than one month, remove
the battery, fully charge it, and
then place it in a cool, dry place.
2. If the battery will be stored for
more than two months, check it at
least once a month and fully
charge it if necessary.
3. Fully charge the battery before in-
stallation.
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
EC000102
CAUTION:@
Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
To charge a sealed-type (MF)
battery, a special (constant-
voltage) battery charger is re-
quired. Using a conventional
battery charger will damage the
battery. If you do not have ac-
cess to a sealed-type (MF) bat-
tery charger, have a Yamaha
dealer charge your battery.
@
E_4br.book Page 28 Wednesday, July 25, 2001 1:40 PM
Page 93 of 104

SPECIFICATIONS
8-2
8
Air filterDry type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 17.0 L
Reserve amount 3.5 L
Carburetor
Manufacturer MIKUNI
Model × quantity BDS28 × 4
Spark plug
Model/Manufacturer CR8E / NGK
U24ESR-N / DENSO
Gap 0.7–0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction system Spur gear
Primary reduction ratio 2.225
Secondary reduction system Chain drive
Secondary reduction ratio 3.000 (except for CH, A)
2.875 (for CH, A)
Number of drive chain
sprocket teeth (rear/front) 48/16 (except for CH, A)
46/16 (for CH, A)
Transmission type Constant mesh 6-speedOperation Left foot
Gear ratio
1st 2.733
2nd 1.778
3rd 1.333
4th 1.074
5th 0.913
6th 0.821
Chassis
Frame type Double cradle
Caster angle 25°
Trail 97 mm
Tire
Front
Type Tubeless tire
Size 110/80-17 57H
110/80-17 M/C 57H
Manufacturer/model MICHELIN / MACADAM 50
DUNLOP / D103FA
Rear
Type Tubeless tire
Size 130/70-18 63H
130/70-18 M/C 63H
Manufacturer/model MICHELIN / MACADAM 50
DUNLOP / D103A
E_4br.book Page 2 Wednesday, July 25, 2001 1:40 PM
Page 94 of 104
SPECIFICATIONS
8-3
8
Maximum load*
XJ600S 184 kg
XJ600N 187 kg
Tire air pressure (measured on
cold tires)
Up to 90 kg*
Front 200 kPa (2.00 kgf/cm
2, 2.00 bar)
Rear 225 kPa (2.25 kgf/cm2, 2.25 bar)
90 kg–maximum*
Front 200 kPa (2.00 kgf/cm2, 2.00 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
High-speed riding
Front 200 kPa (2.00 kgf/cm2, 2.00 bar)
Rear 250 kPa (2.50 kgf/cm2, 2.50 bar)
* Total weight of rider, passenger, cargo and accessories
Wheels
Front
Type Cast wheel
Size 17 × MT 2.50
Rear
Type Cast wheel
Size 18 × MT 3.50Brakes
Front
Type Dual disc brake
Operation Right hand
Fluid DOT 4
Rear
Type Single disc brake
Operation Right foot
Fluid DOT 4
Suspension
Front Telescopic fork
Rear Swingarm (monocross suspen-
sion)
Spring/shock absorbers
Front Coil spring / oil damper
Rear Coil spring / gas-oil damper
Wheel travel
Front 140 mm
Rear 110 mm
Electrical systems
Ignition system Transistorized coil ignition
E_4br.book Page 3 Wednesday, July 25, 2001 1:40 PM