2001 YAMAHA YZF-R1 engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU03611
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 a level
surface and hold it in an upright
position.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.To change the engine oil
(with or without oil filter cartridge
replacement)
1. Remove cowling A. (See page 6-5
for cowling removal and installa-
tion procedures.)1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 2. Remove the cowling stay by
removing the bolt.
3. Start the engine, warm it up for
several minutes, and then turn it
off.
4. Place an oil pan under the engine
to collect the used oil.
5. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:@ Skip steps 6–8 if the oil filter cartridge is
not being replaced. @
6. Remove the oil filter cartridge with
an oil filter wrench.NOTE:@ An oil filter wrench is available at a
Yamaha dealer. @
7. 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. @
1. Engine oil drain bolt
1. Oil filter wrench
2. Oil filter cartridge
1. O-ring
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
68. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
9. Install the engine oil drain bolt, and
then tighten it to the specified
torque.10. 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.
@11. 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. @12. Turn the engine off, and then
check the oil level and correct it if
necessary.
13. Install the cowling stay by install-
ing the bolt.
14. Install the cowling.
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)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
2.7 L
With oil filter cartridge
replacement:
2.9 L
Total amount (dry engine):
3.6 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
EAU03161
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.
@
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, open the res-
ervoir cap, add coolant to the max-
imum level mark, and then close
the reservoir cap.
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.
@
1. Maximum level mark
2. Minimum level mark
Coolant reservoir capacity:
0.45 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-13
6
NOTE:@ l
The radiator fan is automatically
switched on or off according to the
coolant temperature in the
radiator.
l
When the engine is idling with the
starter (choke) turned on, the radi-
ator fan will automatically be
switched on and off regardless of
the coolant temperature, but this
does not indicate a malfunction.
l
If the engine overheats, see page
6-44 for further instructions.
@
EAU01577
To change the coolant
1. Place the motorcycle on a level
surface and let the engine cool if
necessary.
2. Remove cowlings A and B, and
panel A. (See pages 6-5 and 6-6
for cowling and panel removal and
installation procedures.)
3. Place a container under the en-
gine to collect the used coolant.4. Remove the radiator cap and cool-
ant reservoir cap.
EW000067
WARNING
@ Never attempt to remove the radia-
tor cap when the engine is hot. @5. Remove the coolant reservoir
bolts and the clutch cable holder
bolt, and then turn the coolant res-
ervoir upside-down to empty it.
6. Install the coolant reservoir and
the clutch cable holder by install-
ing the bolts.
1. Coolant reservoir cap
2. Radiator cap
1. Bolt (´ 3)
2. Coolant reservoir
3. Clutch cable holder
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6 7. Remove the coolant drain bolt to
drain the cooling system.8. Loosen the radiator hose clamp
screw located at the left side of the
engine, and then pull off the hose
to drain the radiator.
9. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
10. 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. @
11. Connect the radiator hose, and
then tighten the clamp screw.
12. Pour the specified amount of rec-
ommended coolant into the radia-
tor and reservoir.
1. Coolant drain bolt
1. Screw clamp
Tightening torque:
Coolant drain bolt:
7 Nm (0.7 m·kg)
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
2.55 L
Coolant reservoir capacity:
0.45 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-15
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.
@13. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.14. 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.
15. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap, add coolant
to the maximum level mark, and
then install the cap.
16. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
17. Install the cowlings and the panel.
EAU03162
Cleaning the air filter element The air filter element should be cleaned
at the intervals specified in the periodic
maintenance and lubrication chart.
Clean the air filter element more fre-
quently if you are riding in unusually
wet or dusty areas.
1. Remove the rider seat. (See page
3-14 for rider seat removal and in-
stallation procedures.)
2. Remove the bolt at the front of the
fuel tank and loosen the bolt at the
rear.1. Bolt (front)
2. Bolt (rear)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6
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.
@8. Install the air filter case cover by
installing the screws and bolt.
9. Place the fuel tank in the original
position, and then install the bolt at
the front and tighten the bolt at the
rear.
EW000072
WARNING
@ l
Before installing the fuel tank,
make sure that the fuel hoses
are not damaged. If any fuel
hose is damaged, do not start
the engine but have a Yamaha
dealer replace the hose, other-
wise fuel may leak.
l
Make sure that the fuel hoses
are properly connected and
routed, and not pinched.
@
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. @
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