engine YAMAHA YZF-R6 2001 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-5
6
EAU03541
NOTE:@l
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
l
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and caliper, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
@22
*Carburetors• Check starter (choke) operation.
• Adjust engine idling speed and synchronization.ÖÖÖÖÖ Ö
23 Engine oil• Change.ÖÖÖÖÖ Ö
24 Engine oil filter cartridge•Replace.ÖÖÖ
25*Cooling system• Check coolant level and vehicle for coolant leakage.ÖÖÖÖ Ö
• Change. Every 3 years
26*Front and rear brake
switches• Check operation.ÖÖÖÖÖ Ö
27 Moving parts and cables• Lubricate.ÖÖÖÖ Ö
28*Lights, signals and
switches• Check operation.
• Adjust headlight beam.ÖÖÖÖÖ Ö NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (´1,000 km)
ANNUAL
CHECK
1 10203040
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU01639
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal col-
or when the motorcycle is ridden nor-
mally), and all spark plugs installed in
the engine should have the same color.
If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.
Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.Clean 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. @
a. Spark plug gap
Specified spark plug:
CR10EK (NGK)
Spark plug gap:
0.6–0.7 mm
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6
ECA00021
CAUTION:@ Do not use any tools to remove or
install the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twist
it back and forth while pushing it in. @
EAU01610
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, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.1. Engine oil dipstickRight side
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
6
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.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.To change the engine oil (with or
without oil filter cartridge
replacement)
1. Remove cowling A and B. (See
page 6-6 for cowling removal and
installation procedures.)
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Place an oil pan under the engine
to collect the used oil.4. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:@ Skip steps 5–7 if the oil filter cartridge is
not being replaced. @
1. Maximum level mark
2. Minimum level mark
1. Engine oil filler capRight side
1. Engine oil drain boltLeft side
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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
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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
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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
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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)
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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
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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)
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