engine YAMAHA VMAX 2001 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6 2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plugs
1. Check that the porcelain insulator
around the center electrode on
each spark plug is a medium-to-
light tan (the ideal color when the
motorcycle is ridden normally).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:@ 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. @3. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
1. Spark plug wrench
Specified spark plug:
DPR8EA-9/NGK or
X24EPR-U9/DENSO
a. Spark plug gapSpark plug gap:
0.8–0.9 mm
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
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. @4. Install the spark plug cap.
EAU02938
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:
18 Nm (1.8 m·kg)1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 To change the engine oil (with or
without oil filter cartridge replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.3. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:@ Skip steps 4–6 if the oil filter cartridge is
not being replaced. @
4. Remove the oil filter cartridge with
an oil filter wrench.NOTE:@ An oil filter wrench is available at a
Yamaha dealer. @
1. Engine oil filler cap
1. Engine oil drain bolt
1. Oil filter cartridge
2. Oil filter wrench
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-11
65. Apply a thin coat of engine oil to
the O-ring of the new oil filter car-
tridge.
NOTE:@ Make sure that the O-ring is properly
seated. @
6. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
7. Install the engine oil drain bolt, and
then tighten it to the specified
torque.8. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
1. O-ring
1. Torque wrench
Tightening 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:
3.2 L
With oil filter cartridge
replacement:
3.4 L
Total amount (dry engine):
4.0 L
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-12
6
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.
@9. 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. @10. Turn the engine off, and then
check the oil level and correct it if
necessary.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-14
6
EAU03416
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
If the engine overheats, see page 6-46
for further instructions.
To check the coolant level
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. Remove cowling A. (See page 6-6
for cowling removal and installa-
tion procedures.)
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.
@3. Check the coolant level in the
coolant reservoir.NOTE:@ The coolant should be between the
minimum and maximum level marks. @4. If the coolant is at or below the
minimum level mark, remove the
coolant reservoir cap and add
coolant to the maximum level
mark.
5. Install the coolant reservoir cap
and the cowling.
1. Maximum level mark
2. Minimum level mark
Coolant reservoir capacity:
0.3 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.
@
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. @
EAU03417
To change the coolant
1. Place the motorcycle on a level
surface and let the engine cool if
necessary.
2. Remove cowling A and panel A.
(See pages 6-6 and 6-7 for cowl-
ing and panel removal and instal-
lation procedures.)
3. Place a container under the en-
gine to collect the used coolant.
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-16
6 4. Remove the radiator cap.
EW000067
WARNING
@ Never attempt to remove the radia-
tor cap when the engine is hot. @
5. Turn the coolant drain cock to
“ON”.6. Remove the water pump drain bolt
to drain the water pump housing.
1. Radiator cap
1. Coolant drain cock
2. Position indicator
1. Water pump drain bolt
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
67. Remove the cylinder drain plug
covers on the outside of the cylin-
der blocks by removing the
screws.8. Remove the rubber coolant drain
plugs to drain the coolant from the
engine.
9. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
10. Install the water pump drain bolt,
and then tighten it to the specified
torque.
NOTE:@ Check the washer for damage and re-
place it if necessary. @
11. Install the rubber coolant drain
plugs, and then install the cylinder
drain plug covers.NOTE:@ Check the rubber plugs for damage
and replace them if necessary. @12. Turn the coolant drain cock to
“OFF”.
13. Pour the recommended coolant
into the reservoir to the maximum
level, and then install the cap.
14. Pour the recommended coolant
into the radiator until it is full.
1. Screw (´ 4)
1. Rubber coolant drain plug (´ 4)
Tightening torque:
Water pump drain bolt:
43 Nm (4.3 m·kg)
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PERIODIC MAINTENANCE AND MINOR REPAIR
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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.
@15. Install the radiator cap, start the
engine, let it idle for several min-
utes, and then turn it off.
16. 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.
17. 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.
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 cowling and the panel. Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol
antifreeze containing corrosion
inhibitors for aluminum engines
Coolant quantity:
Total amount:
3.05 L
Coolant reservoir capacity:
0.3 L
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