Page 63 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6 5. Remove the oil filter cartridge with
an oil filter wrench.
NOTE:@ An oil filter wrench is available at a
Yamaha dealer. @
6. Apply a thin coat of engine oil to
the O-ring of the new oil filter
cartridge.NOTE:@ Make sure that the O-ring is properly
seated. @
7. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
8. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
1. Oil filter wrench
2. Oil filter cartridgeLeft side
1. O-ring
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kg)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kg)Left side
E_5mt.book Page 12 Monday, September 18, 2000 9:08 AM
Page 64 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
69. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
EC000072
CAUTION:@ l
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives with
the oil or use oils of a higher
grade than “CD”. In addition, do
not use oils labeled “ENERGY
CONSERVING II” or higher.
l
Make sure that no foreign mate-
rial enters the crankcase.
@10. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.NOTE:@ After the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient. @
EC000067
CAUTION:@ If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha deal-
er check the vehicle. @11. Turn the engine off, and then
check the oil level and correct it if
necessary.
12. Install the cowling.
EAU01611
Coolant To check the coolant level
1. Place the motorcycle on a level
surface and hold it in an upright
position.NOTE:@ l
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
l
Make sure that the motorcycle is
positioned straight up when
checking the coolant level. A slight
tilt to the side can result in a false
reading.
@
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
2.5 L
With oil filter cartridge
replacement:
2.7 L
Total amount (dry engine):
3.5 L
1. Maximum level mark
2. Minimum level markLeft side
E_5mt.book Page 13 Monday, September 18, 2000 9:08 AM
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6 2. Check the coolant level in the
coolant reservoir.
NOTE:@ The coolant should be between the
minimum and maximum level marks. @3. If the coolant is at or below the
minimum level mark, remove the
coolant reservoir cover by remov-
ing the bolts, open the reservoir
cap, add coolant to the maximum
level mark, close the reservoir
cap, and then install the reservoir
cover and bolts.
EC000080
CAUTION:@ l
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
l
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
l
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
@
EW000067
WARNING
@ Never attempt to remove the radia-
tor cap when the engine is hot. @NOTE:@ The radiator fan is automatically
switched on or off according to the
coolant temperature in the radiator. If
the engine overheats, see page 6-46
for further instructions. @
1. Bolt (´ 2)Left side
Coolant reservoir capacity:
0.44 L
E_5mt.book Page 14 Monday, September 18, 2000 9:08 AM
Page 66 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
6
EAU01612
To change the coolant
1. Place the motorcycle on a level
surface and let the engine cool if
necessary.
2. Remove panel C, and cowlings A
and B. (See pages 6-6–6-8 for
panel and cowling removal and in-
stallation procedures.)
3. Place a container under the en-
gine to collect the used coolant.
4. Remove the radiator cap.
EW000067
WARNING
@ Never attempt to remove the radia-
tor cap when the engine is hot. @
5. Remove the water pump drain bolt
to drain the water pump housing.
6. Loosen the clamp screw, and then
disconnect the radiator hose to
drain the radiator.
7. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
8. Connect the radiator hose, and
then tighten the clamp screw.
9. Install the coolant drain bolt, and
then tighten it to the specified
torque.
NOTE:@ Check the washer for damage and re-
place it if necessary. @
1. Radiator capRight side
1. Water pump drain bolt
2. Clamp screwRight side
Tightening torque:
Coolant drain bolt:
12 Nm (1.2 m·kg)
E_5mt.book Page 15 Monday, September 18, 2000 9:08 AM
Page 67 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 10. Remove the coolant reservoir cov-
er by removing the bolts.11. Remove the coolant reservoir by
removing the bolts.
12. Remove the coolant reservoir cap,
and then turn the reservoir upside-
down to empty it.
13. Install the coolant reservoir by in-
stalling the bolts.
14. Pour the recommended coolant
into the reservoir to the maximum
level mark, and then install the cap
and cover.
15. Pour the recommended coolant
into the radiator until it is full.
1. Bolt (´ 2)Left side
1. Bolt (´ 2)Left side
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
2.15 L
Coolant reservoir capacity:
0.44 L
E_5mt.book Page 16 Monday, September 18, 2000 9:08 AM
Page 68 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
EC000080
CAUTION:@ l
If coolant is not available, use
distilled water or soft tap water
instead. Do not use hard water
or salt water since it is harmful
to the engine.
l
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the engine may not be
sufficiently cooled and the cool-
ing system will not be protected
against frost and corrosion.
l
If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possible,
otherwise the effectiveness of
the coolant will be reduced.
@16. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.17. Remove the radiator cap to check
the coolant level in the radiator. If
necessary, add sufficient coolant
until it reaches the top of the radia-
tor, and then install the radiator
cap.
18. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
19. Install the panel and the cowlings.
EAU03726
Checking the air filter element The air filter element should be
checked at the intervals specified in the
periodic maintenance and lubrication
chart. Check the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
1. Remove the rider seat. (See
page 3-13 for rider seat removal
and installation procedures.)
2. Remove the fuel tank bolts and lift
the fuel tank as shown.1. Bolt (´ 2)
E_5mt.book Page 17 Monday, September 18, 2000 9:08 AM
Page 70 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-19
66. Pull the air filter element out.
7. Check the condition of the air filter
element and replace it if it is dam-
aged or excessively dusty.8. Insert the element into the air filter
case.
EC000082
CAUTION:_ l
Make sure that the air filter ele-
ment is properly seated in the
air filter case.
l
The engine should never be op-
erated without the air filter ele-
ment installed, otherwise the
piston(s) and/or cylinder(s) may
become excessively worn.
_9. Install the air filter case cover by
installing the screws.
10. Connect the fuel sender coupler
and the hoses, turn the fuel cock
lever to “ON”, place the fuel tank in
the original position, and then in-
stall the bolts.
EW000131
WARNING
_ Make sure that the fuel hoses and
vacuum hose are properly connect-
ed and routed, and not pinched. Re-
place any damaged hoses. _11. Install the rider seat.
1. Air filter elementE_5mt.book Page 19 Monday, September 18, 2000 9:08 AM
Page 71 of 118
PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU01335
Air intake duct Check that the screen of the intake
duct is not blocked. Clean the screen if
necessary.
EAU00630
Adjusting the carburetors The carburetors are important parts of
the engine and require very sophisti-
cated adjustment. Therefore, most car-
buretor adjustments should be left to a
Yamaha dealer, who has the neces-
sary professional knowledge and expe-
rience. The adjustment described in
the following section, however, may be
serviced by the owner as part of routine
maintenance.
EC000095
CAUTION:@ The carburetors have been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine. @
1. Air intake duct
E_5mt.book Page 20 Monday, September 18, 2000 9:08 AM
