torque YAMAHA MAJESTY 250 2001 Owners Manual

6-2
NOTE:
If you do not have the tools or experi-
ence required for a particular job,
have a Yamaha dealer perform it for
you.
EW000063
wModifications not approved by
Yamaha may cause loss of perfor-
mance and render the vehicle
unsafe for use. Consult a Yamaha
dealer before attempting any
changes.
PERIODIC MAINTENANCE AND MINOR REPAIR
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Pull up the mat and then remove the
ownerÕs tool kit.
The service information included in
this manual and the tools provided in
the ownerÕs tool kit are intended to
assist you in the performance of pre-
ventive maintenance and minor
repairs. However, additional tools
such as a torque wrench may be nec-
essary to perform certain mainte-
nance work correctly.1.Mat
2.OwnerÕs tool kit
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1
3.Remove the spark plug as
shown, with the spark plug
wrench included in the ownerÕs
tool kit.1.Spark plug wrench
6-13PERIODIC MAINTENANCE AND MINOR REPAIR
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9To check the spark plug
1.Check that the porcelain insula-
tor around the center electrode
of the spark plug is a medium-to-
light tan (the ideal color when the
scooter is ridden normally).
NOTE:
If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnose
such problems yourself. Instead,
have a Yamaha dealer check the
scooter.2.Check the spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and
replace it if necessary.
a
a.Spark plug gap
Spark plug gap:
0.6Ð0.7 mm
To install the spark plug
1.Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
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
tighten it to the specified torque. Specified spark plug:
DR8EA (NGK)
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NOTE:
If a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is
1/4Ð1/2 turn past finger tight.
However, the spark plug should be
tightened to the specified torque as
soon as possible.4.Install the spark plug cap.
5.Install the cowling. Tightening torque:
Spark plug:
17.5 Nm (1.75 m0kg)
EAU03119
Engine oilThe engine oil level should be
checked before each ride. In addition,
the oil must be changed at the inter-
vals specified in the periodic mainte-
nance and lubrication chart and when
the oil change indicator light comes
on.To check the engine oil level
1.Place the scooter on the center-
stand.
NOTE:
Make sure that the scooter 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.
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4.Check the washer for damage
and replace it if necessary.
5.Install the washer and the engine
oil drain bolt, and then tighten
the drain bolt to the specified
torque.NOTE:
Make sure that the washer is properly
seated.1.Engine oil drain bolt
2.Washer
Tightening torque:
Engine oil drain bolt:
20 Nm (2.0 m0kg)
6.Add the specified amount of the
recommended engine oil, and
then install and tighten the oil
filler cap.
EC000030
cC8Do not put in any chemical
additives or use oils with a
grade of CD or higher. Also, be
sure not to use oils labeled
ÒENERGY CONSERVING
IIÓ or
higher.
8Be sure no foreign material
enters the crankcase.
Recommended oil:
See page 8-1.
Oil quantity:
Periodic oil change:
1.2 L
Total amount (dry engine):
1.4 L
7.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.
8.Reset the oil change indicator
light according to the following
procedure.
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4.Remove the oil filler cap and
drain bolt to drain the oil from the
final gear case.
5.Install the final gear oil drain bolt,
and then tighten it to the speci-
fied torque.
6.Add the specified amount of the
recommended final gear oil, and
then install and tighten the oil
filler cap.
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1.Final gear oil filler cap
Tightening torque:
Final gear oil drain bolt:
22 Nm (2.2 m0kg)
EW000066
w8Make sure that no foreign
material enters the final gear
case.
8Make sure that no oil gets on
the tire or wheel.7.Check the final gear case for oil
leakage. If oil is leaking, check
for the cause.
1
1.Final gear oil drain bolt
Recommended final gear oil:
See page 8-2.
Oil quantity:
0.25 L
EAU01587
CoolantThe coolant reservoir is located
under the battery cover. (See page
6-31 for battery cover removal proce-
dures.)
To check the coolant level
1.Place the scooter on a level sur-
face and hold it in an upright
position.NOTE:
8The coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
8Make sure that the scooter is
positioned straight up when
checking the coolant level. A
slight tilt to the side can result in
a false reading.
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SPECIFICATIONS
EAU01064
Conversion tableAll specification data in this manual are listed in SI and
METRIC UNITS.
Use this table to convert METRIC unit data to
IMPERIAL unit data.
Ex.
METRICMULTIPLIERIMPERIAL
** mm´0.03937=** in
2 mm´0.03937=0.08 in
METRIC TO IMPERIAL
Metric unitMultiplierImperial unit
m¥kg7.233ft¥lb
Torquem¥kg86.794in¥lb
cm¥kg0.0723ft¥lb
cm¥kg0.8679in¥lb
Weightkg2.205lbg0.03527oz
Speedkm/hr0.6214mph
km0.6214mi
m3.281ft
Distancem1.094yd
cm0.3937in
mm0.03937in
cc (cm3)0.03527oz (IMP liq.)
Volume/cc (cm3)0.06102cu¥in
CapacityL (liter)0.8799qt (IMP liq.)L (liter)0.2199gal (IMP liq.)
kg/mm55.997lb/in
Misc.kg/cm214.2234psi (lb/in2)Centigrade (¡C)
9/5 + 32
Fahrenheit (¡F)
CONVERSION TABLE
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