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6 7. Apply a light coat of engine oil to
the O-ring of the new oil filter.
NOTE:@ Make sure the O-ring is seated proper-
ly. @
8. Install the oil filter and tighten it to
the specified torque with an oil fil-
ter wrench.9. Fill the engine with sufficient oil to
reach the specified level. Install
the engine oil filler cap and tighten
it.
EC000066
CAUTION:@ l
Do not put in any chemical addi-
tives. Engine oil also lubricates
the clutch and additives could
cause clutch slippage.
l
Be sure no foreign material en-
ters the crankcase.
@
1. O-ring
1. Torque wrenchTightening torque:
Oil filter:
17 Nm (1.7 m·kg)
Recommended oil:
See page 8-1.
Oil quantity:
Total amount:
3.5 L
Periodic oil change:
2.5 L
With oil filter replacement:
2.7 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
610. Start the engine and warm it up for
several minutes. While warming
up, check for oil leakage. If oil
leakage is found, stop the engine
immediately and check for the
cause.
11. After the engine is started, the oil
level indicator light should go off if
the oil is at the specified level.
EC000067
CAUTION:@ If the indicator light flickers or re-
mains on, immediately stop the en-
gine and consult with a Yamaha
dealer. @12. Install the cowling.
EAU01611
Cooling system1. Check the coolant level in the res-
ervoir tank when the engine is cold
as the coolant level will vary with
engine temperature. The coolant
level should be between the maxi-
mum and minimum marks.2. If the level is low, remove the res-
ervoir tank cover by removing the
bolts.
3. Add coolant or distilled water to
raise it to the specified level.
4. Install the reservoir tank cover and
bolts.1. Maximum level mark
2. Minimum level mark
1. Bolt (´ 2)
Reservoir tank capacity:
0.44 L
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6-14
6
EC000080
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use distilled
water if you can’t get soft water. @NOTE:@ If water is added, have a Yamaha deal-
er check the antifreeze content of the
coolant as soon as possible.
The radiator fan operation is complete-
ly automatic. It is switched on or off ac-
cording to the coolant temperature in
the radiator. @5. If your motorcycle overheats, see
page 6-42 for details.
EAU01612
Changing the coolant1. Remove panel C, cowling A and
cowling B. (See page 6-6 for re-
moval and installation proce-
dures.)
2. Place a container under the en-
gine.
3. Remove the radiator cap.4. Remove the water pump drain bolt
and drain the coolant from the wa-
ter pump housing.
5. Disconnect the radiator hose by
loosening the clamp and drain the
coolant completely.
6. Thoroughly flush the cooling sys-
tem with clean tap water.1. Radiator cap
1. Water pump drain bolt
2. Clamp bolt
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6
EC000080
CAUTION:@ Hard water or salt water is harmful
to the engine. You may use distilled
water if you can’t get soft water. @15. Install the radiator cap.
16. Run the engine several minutes to
recheck the coolant level in the ra-
diator. If it is low, fill with more
coolant until it reaches the top of
the radiator.17. Check for coolant leakage.
NOTE:@ If you find any leaks, ask a Yamaha
dealer to inspect. @18. Install the panel and the cowling. Recommended anti-freeze:
High quality ethylene glycol
anti-freeze containing corrosion
inhibitors for aluminum engines.
Antifreeze and water mix ratio:
1:1
Total amount:
2.15 L
Reservoir tank capacity:
0.44 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
6
EC000082*
CAUTION:@ l
Make sure the air filter element
is properly seated in the air filter
case.
l
The engine should never be run
without the air filter installed.
Excessive piston and/or cylin-
der wear may result.
@11. Reverse the removal procedure
for installation.
EW000131
WARNING
@ Make sure that the fuel hoses and
vacuum hose are properly connect-
ed, in place and not pinched. If a
hose is damaged, be sure to replace
it. @
EAU01335
Air intake ductCheck that the screen of the intake
duct is not blocked. Clean the screen if
necessary.1. Air intake duct
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU00630
Carburetor adjustmentThe carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Most adjustments
should be left to a Yamaha dealer who
has the professional knowledge and
experience to do so. However, the idle
speed may be adjusted by the owner
as part of routine maintenance.
EC000095
CAUTION:@ The carburetors were set at the
Yamaha factory after many tests. If
they are changed, poor engine per-
formance and damage may result. @
EAU00632
Idle speed adjustment1. Start the engine and warm it up for
a few minutes at approximately
1,000 to 2,000 r/min. Occasionally
rev the engine to 4,000 to
5,000 r/min. The engine is warm
when it quickly responds to the
throttle.
2. Set the idle to the specified engine
speed by adjusting the throttle
stop screw. Turn the screw in di-
rection
a to increase engine
speed and in direction
b to de-
crease engine speed.
NOTE:@ If the specified idle speed cannot be
obtained by performing the above ad-
justment, consult a Yamaha dealer. @
1. Throttle stop screw
Standard idle speed:
1,250 ~ 1,350 r/min
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-21
6
EAU00635
Throttle cable free play
inspectionThere should be a free play of 6 ~
8 mm at the throttle grip. If the free play
is incorrect, ask a Yamaha dealer to
make this adjustment.
EAU00637
Valve clearance adjustmentThe correct valve clearance changes
with use, resulting in improper fuel/air
supply or engine noise. To prevent this,
the valve clearance must be adjusted
regularly. This adjustment however,
should be left to a professional
Yamaha service technician.
EAU00658
TiresTo ensure maximum performance,
long service and safe operation, note
the following:
Tire air pressure
Always check and adjust the tire pres-
sure before operating the motorcycle.
EW000082
WARNING
@ Tire inflation pressure should be
checked and adjusted when the
temperature of the tire equals the
ambient air temperature. Tire infla-
tion pressure must be adjusted ac-
cording to total weight of cargo,
rider, passenger, and accessories
(fairing, saddlebags, etc. if approved
for this model), and vehicle speed. @
a. Free playE_5eb_Periodic.fm Page 21 Thursday, November 18, 1999 4:06 PM
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU01251
Drive chain slack adjustment1. Loosen the axle nut.
2. Loosen the locknuts on each side.
To tighten the chain, turn the chain
adjusting bolts in direction
a. To
loosen the chain, turn the adjust-
ing bolts in direction
b and push
the wheel forward. Turn each ad-
justing bolt exactly the same
amount to maintain correct axle
alignment. There are marks on
each side of the swingarm. Use
these marks to align the rear
wheel.
EC000096
CAUTION:@ Too little chain slack will overload
the engine and other vital parts.
Keep the slack within the specified
limits. @3. After adjusting, tighten the lock-
nuts. Then tighten the axle nut to
the specified torque.
EAU03006
Drive chain lubricationThe chain consists of many parts which
work with each other. If the chain is not
maintained properly, it will wear out
quickly. Therefore, the chain must be
serviced regularly. This service is es-
pecially necessary when riding in dusty
areas. This motorcycle is equipped
with a sealed type chain. Steam clean-
ing, high-pressure washers, and sol-
vents can damage the drive chain, so
do not use these for cleaning it. Use
only kerosene to clean the drive chain.
Wipe it dry, and thoroughly lubricate it
with SAE 30 ~ 50W motor oil. Do not
use any other lubricants on the drive
chain. They may contain solvents that
could damage the sealed chain.
EC000097
CAUTION:@ Be sure to oil the chain after wash-
ing the motorcycle or riding in the
rain. @
1. Axle nut
2. Adjusting bolt
3. Locknut
4. Alignment marks
Tightening torque:
Axle nut:
150 Nm (15.0 m·kg)
E_5eb_Periodic.fm Page 29 Thursday, November 18, 1999 4:06 PM
