2010 YAMAHA VMAX check engine

PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6To install the panel
Place the panel in the original position,
and then install the bolt.
EAU46680
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 color
when the vehicle is ridden normally),
and all spark plugs installed in the en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
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 replaced if
out of specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
1. Panel C
2. Bolt
1 2
Specified spark plug:
NGK/CR9EIA
DENSO/IU27D1. Spark plug gapSpark plug gap:
0.8–0.9 mm (0.031–0.035 in)
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
TIPIf 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.NOTICE
ECA10840
Do not use any tools to remove or in-
stall 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.
EAU19908
Engine oil and oil filter car-
tridge 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 vehicle on a level sur-
face and hold it in an upright posi-
tion. 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.TIPThe 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 replace-
ment)
1. Place the vehicle on a level sur-
face.
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.
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
2
3
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6 8. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
9. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA11620


In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.


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, im-
mediately turn the engine off and
check for the cause.TIPAfter the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient.NOTICE
ECA10401
If the oil level warning light flickers
or remains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer check
the vehicle.11. Turn the engine off, wait a few min-
utes until the oil settles, and then
check the oil level and correct it if
necessary.
1. Torque wrenchTightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
1
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
4.30 L (4.55 US qt, 3.78 Imp.qt)
With oil filter cartridge replacement:
4.70 L (4.97 US qt, 4.14 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
67. Check the oil filler bolt gasket for
damage, and replace it if neces-
sary.
8. Install the oil filler bolt and its gas-
ket, and then tighten the bolt to the
specified torque.
9. Install the final gear case breather
cap by installing the washer and
bolt, and then tighten the bolt to the
specified torque.
10. Check the final gear case for oil
leakage. If oil is leaking, check for
the cause.
EAU20070
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.
EAU46690
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.TIP

The coolant level must be checked
on a cold engine since the level
varies with engine temperature.


Make sure that the vehicle is posi-
tioned 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 cool-
ant reservoir.TIPThe 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 cap guard by re-
moving the bolt, and then remove
the reservoir cap.
4. Add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is hot.
[EWA15161]
NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Tightening torque:
Final gear case breather cap bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1. Coolant reservoir cap
2. Coolant reservoir cap guard
3. Bolt
4. Maximum level mark
5. Minimum level mark
2
1
5 4
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6 use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
[ECA10472]
5. Install the coolant reservoir cap
guard by installing the bolt.
EAU46423
To change the coolant
1. Place the vehicle on a level sur-
face and let the engine cool if nec-
essary.
2. Remove cowling A. (See page
6-7.)3. Remove the air intake duct by re-
moving the bolts.
4. Place a container under the engine
to collect the used coolant.
5. Remove the radiator cap.
WARNING! Never attempt to re-
move the radiator cap when the
engine is hot.
[EWA10381]
6. Remove the coolant reservoir cov-
er and coolant reservoir by remov-
ing the bolts.
Coolant reservoir capacity (up to
the maximum level mark):
0.27 L (0.29 US qt, 0.24 Imp.qt)
1. Bolt
2. Air intake duct
11
2
1. Radiator cap
1. Bolt
2. Coolant reservoir cap
3. Coolant reservoir cap guard
4. Coolant reservoir cover
5. Coolant reservoir
1
4
5
1
2
3
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
67. Remove the coolant reservoir cap
guard by removing the bolt, and
then remove the reservoir cap.
8. Drain the coolant from the coolant
reservoir by turning it upside down.
9. Install the coolant reservoir cover
and the coolant reservoir by plac-
ing them in their original position,
and then installing the bolts.
10. Remove the coolant drain screw
and its O-ring to drain the cooling
system.
11. After the coolant is completely
drained, thoroughly flush the cool-
ing system with clean tap water.
12. Install the coolant drain screw and
its new O-ring.13. Hold the vehicle upright, and pour
the specified amount of the recom-
mended coolant into the radiator
and reservoir. NOTICE: Failing to
hold the vehicle upright when
filling the radiator with coolant
may cause air to be trapped in
the cooling system.
[ECA16540]
14. Install the coolant reservoir cap,
and then install the reservoir cap
guard by installing the bolt.
15. Install the radiator cap.
16. Start the engine, let it idle for sev-
eral minutes, 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. Check the coolant level in the res-
ervoir. If necessary, remove the
coolant reservoir cap guard and
the cap, add coolant to the maxi-
mum level mark, and then install
the cap and the cap guard.
19. Start the engine, and then check
the vehicle for coolant leakage. If
coolant is leaking, have a Yamaha
dealer check the cooling system.
20. Install the air intake duct by install-
ing the bolts.
21. Install the cowling.
1. Coolant drain screw
2. O-ring
1
2
Antifreeze/water mixture ratio:
1:1
Recommended antifreeze:
High-quality ethylene glycol anti-
freeze containing corrosion inhibi-
tors for aluminum engines
Coolant quantity:
Radiator capacity (including all
routes):
3.75 L (3.96 US qt, 3.30 Imp.qt)
Coolant reservoir capacity (up to the
maximum level mark):
0.27 L (0.29 US qt, 0.24 Imp.qt)
U2S3E1E0.book Page 17 Friday, August 7, 2009 1:06 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-18
6
EAU36764
Air filter element The air filter element must be replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the air
filter element.
EAU44734
Checking the engine idling
speed Check the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.
EAU21382
Checking the throttle cable
free play The throttle cable free play should mea-
sure 3.0–5.0 mm (0.12–0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if neces-
sary, have a Yamaha dealer adjust it.
Engine idling speed:
950–1050 r/min
1. Throttle cable free play
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
6
EAU21401
Valve clearance The valve clearance changes with use,
resulting in improper air-fuel mixture
and/or engine noise. To prevent this
from occurring, the valve clearance
must be adjusted by a Yamaha dealer
at the intervals specified in the periodic
maintenance and lubrication chart.
EAU21772
Tires To maximize the performance, durabil-
ity, and safe operation of your motorcy-
cle, note the following points regarding
the specified tires.
Tire air pressure
The tire air pressure should be checked
and, if necessary, adjusted before each
ride.
WARNING
EWA10501
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or death from loss of
control.

The tire air pressure must be
checked and adjusted on cold
tires (i.e., when the temperature
of the tires equals the ambient
temperature).


The tire air pressure must be ad-
justed in accordance with the
riding speed and with the total
weight of rider, passenger, car-
go, and accessories approved
for this model.
WARNING
EWA10511
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.Tire air pressure (measured on cold
tires):
0–90 kg (0–198 lb):
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
90–190 kg (198–419 lb):
Front:
250 kPa (2.50 kgf/cm², 36 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
High-speed riding:
Front:
290 kPa (2.90 kgf/cm², 42 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
Maximum load*:
190 kg (419 lb)
* Total weight of rider, passenger, car-
go and accessories
U2S3E1E0.book Page 19 Friday, August 7, 2009 1:06 PM