2008 YAMAHA XMAX 125 maintenance

EAU18670
NOTE:
●The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
●Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the bra-
ke fluid.
• Replace the brake hoses every four years and if cracked or damaged.
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EAU18731
Removing and installing the
cowlings and panel
1. Cowling A
2. Cowling B
3. Cowling C
4. Panel A
1. Cowling D
The cowlings and panel shown need
to be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each
time a cowling or panel needs to be
removed and installed.
EAU18900
Cowling A
T
o remove the cowling
1. Remove the cowling bolts.
1. Screw
2. Cowling A
2. Disconnect the turn signal light
lead connectors, and then take
the cowling off.
1. Turn signal light lead coupler
To install the cowling
1. Connect the turn signal light lead
connectors.
2. Place the cowling in the original
position.
3. Install the cowling bolts.
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EAU18790
Cowling B
T
o remove the cowling
Remove the screws, and then take
the cowling off.
1. Screw
2. Cowling B
To install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
EAU18790
Cowling C
T
o remove the cowling
Remove the screws, and then take
the cowling off.
1. Screw
2. Cowling C
To install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
EAU18790
Cowling D
T
o remove the cowling
Remove the screws, and then take
the cowling off.
1. Cowling D
2. Screw
To install the cowling
Place the cowling in the original posi-
tion, and then install the screws.
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EAUM1250
Panel A
T
o remove the panel
1. Open the storage compartment.
(See page 3-15.)
1. Screw
2. Panel A
2. Remove the screw, and then take
the panel off.
T
o install the panel
1. Place the panel in the original
position, and then install the
screw.
2. Close the storage compartment.
EAU19631
Checking the spark plug
The spark plug is an important engine
component, which is easy to check.
Since heat and deposits will cause
any spark plug to slowly erode, the
spark plug should be removed and
checked in accordance with the
periodic maintenance and lubrication
chart. In addition, the condition of the
spark plug can reveal the condition of
the engine.
To remove the spark plug
1. Remove cowling D. (See page
6-7.)
2. Remove the spark plug cap.
1. Spark plug cap
3. Remove the spark plug as
shown, with the spark plug
wrench included in the owner’s
tool kit.
1. Spark plug wrench
To check the spark plug
1. Spark plug gap
1
1
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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
vehicle is ridden normally).
NOTE:
If the spark plug shows a distinctly
different color, the engine could be
operating improperly. Do not attempt
to diagnose such problems yourself.
Instead, have a Yamaha dealer check
the vehicle.
2. Check the spark plug for electro-
de erosion and excessive carbon
or other deposits, and replace it if
necessary.
To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to spe-
cification.2. Clean the surface of the spark
plug gasket and its mating surfa-
ce, 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.
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 specified torque as soon as pos-
sible.
4. Install the spark plug cap.
5. Install the cowling.
EAUM2270
Engine oil
The engine oil level should be chec-
ked before each ride. In addition, the
oil must be changed at the intervals
specified in the periodic maintenance
and lubrication chart and when the
service indicator light comes on.
To check the engine oil level
1. Place the scooter on the centers-
tand.
NOTE:
Make sure that the scooter is positio-
ned 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.
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)
Spark plug gap:
0.8-0.9 mm (0.031-0.035 in)
Specified spark plug:
NGK/ CPR 9EA-9
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1. Engine oil filler cap
2. Maximum level mark
3. Minimum level mark
3. Wait a few minutes until the oil
settles, remove the oil filler cap,
wipe the dipstick clean, insert it
back into the oil filler hole (wit-
hout screwing it in), and then
remove it again to check the oil
level.
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 rai-
se 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 element
replacement)
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 the engine oil drain bolt to
drain the oil from the crankcase.1. Engine oil drain bolt
4. Check the drain bolt washer for
damage and replace it if neces-
sary.
1. Engine oil drain bolt
2. Washer
NOTE:
Skip steps 5 to 9 if the oil filter ele-
ment is not being replaced.
5. Remove the oil filter element
cover by removing the bolts.
1. Oil filter element cover
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6. Remove the oil filter element and
o-ring.
1. Oil filter element
2. O-ring
3. Oil filter element cover
7. Check the O-ring for domage
and replace it if necessary.
8. Install the new oil filter element
and an O-ring.
9. Install the oil filter element cover
by installing the bolts, then tigh-
tening them to the specified tor-
que.
NOTE:
Make sure that the O-ring is properly
seated.
10. 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.
11. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil
filler cap.
NOTE:
Be sure to wipe off spilled oil on any
parts after the engine and exhaust
system have cooled down.
ECA11670
CAUTION:
●Do not use oils with a diesel
specification of “CD” or oils of
a higher quality than specified.
In addition, do not use oils
labeled “ENERGY CONSER-
VING II” or higher.
●Be sure no foreign material
enters the crankcase.
12. 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 cau-
se.
13. Turn the engine off, and then
check the oil level and correct it if
necessary.
14. Reset the oil change indicator.
(See page 3-6.)
Recommended engine oil:
See page 8-1.
Oil change quantity:
Without oil filter element replace-
ment
1.40 L (1.48 US qt) (1.23 Imp.qt)
With oil filter element replacement
1.50 L (1.59 US qt) (1.32 Imp.qt)
Tightening torque:
Engine oil drain bolt:
32 Nm (3.2 m·kgf, 23 ft·lbf)
Tightening torque:
Oil filter cover bolt::
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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EAU20061
Final transmission oil
The final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the
scooter. In addition, the final trans-
mission oil must be changed as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
1. Start the engine, warm up the
final transmission oil by riding the
scooter for several minutes, and
then stop the engine.
2. Place the scooter on the centers-
tand.
3. Place an oil pan under the final
transmission case to collect the
used oil.
4. Remove the oil filler cap and
drain bolt to drain the oil from the
final transmission case.
1. Final transmission oil filler cap
2. O-ring
5. Install the final transmission oil
drain bolt, and then tighten it to
the specified torque.
1. Final transmission oil drain bolt
6. Add the specified amount of the
recommended final transmission
oil, and then install and tighten
the oil filler cap.
EWA11310
s s
WARNING
●Make sure that no foreign
material enters the final trans-
mission case.
●Make sure that no oil gets on
the tire or wheel.
7. Check the final transmission case
for oil leakage. If oil is leaking,
check for the cause.
Recommended final transmission
oil:
See page 8-1.
Oil quantity:
0.21 L (0.22 US qt) (0.18 Imp.qt)
Tightening torque:
Final transmission oil drain bolt:
20 Nm (2.0 m·kgf, 14 ft·lbf)
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