2021 YAMAHA XMAX 125 torque

Instrument and control functions
5-23
5
2. Remove the windshield by remov-ing the bolts.
3. Remove the bolts, and then install the bolts in the desired position. 4. Install the windshield to the high
position by installing the bolts, and
then tighten the bolts to the spec-
ified torque. WARNING! A loose
win dshield could cause an acci- d
ent. Be sure to ti ghten the
screws to the specified torque.
[EWA15511]
5. Place the bolt access covers, and
then install the quick fasteners.
1. Quick fastener
2. Bolt access cover
1. BoltZAUM19192
1
ZAUM1920
1
1
1. Bolt
1. Bolt
1
1
ZAUM1921ZAUM1922
1
1
1
1. BoltTi
ghtenin g torque:
Windshield bolt: 8 N·m (0.8 kgf·m, 5.9 lb·ft)ZAUM1923
1
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Instrument and control functions
5-24
5
To chan ge the win dshiel d hei ght to
the low position 1. Remove the bolt access covers by removing the quick fasteners.
2. Remove the windshield by remov- ing the bolts.
3. Remove the bolts, and then install the bolts in the desired position.
4. Install the windshield to the lowposition by installing the bolts, and
then tighten the bolts to the spec-
ified torque. WARNING! A loose
win dshiel d coul d cause an acci- d
ent. Be sure to ti ghten the
screws to the specified torque.
[EWA15511]
5. Place the bolt access covers, and
then install the quick fasteners.
1. Bolt access cover
2. Quick fastenerZAUM1924
12
1. Bolt
1. BoltZAUM1925
1
1
1
ZAUM1926
1
1
1. Bolt
Ti
ghtenin g torque:
Windshield bolt: 8 N·m (0.8 kgf·m, 5.9 lb·ft)ZAUM1927
1
UB9YE0E0.book Page 24 Wednesday, January 6, 2021 3:03 PM

Periodic maintenance an d a djustment
8-2
8
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and equipped to perform these particular
services.
EAU85230
Tool kitThe tool kit is in the location shown.
The information included in this manual
and the tools provided in the tool kit are
intended to assist you in the perfor-
mance of preventive maintenance and
minor repairs. However, a torque
wrench and other tools are necessary
to perform certain maintenance work
correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, have
your Yamaha dealer perform it for you.1. Tool kitZAUM1937
1
UB9YE0E0.book Page 2 Wednesday, January 6, 2021 3:03 PM

Periodic maintenance an d a djustment
8-9
8
EAU19623
Checkin g the spark plugThe spark plug is an important engine
component, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
it should be removed and checked in
accordance with the periodic mainte-
nance and lubrication chart. In addi-
tion, the condition of the spark plug
can reveal the condition of the engine.
The porcelain insulator around the
center electrode of the spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally). 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 deal-
er check the vehicle.
If the spark plug shows signs of elec-
trode 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.
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
specified torque as soon as possible.
Specifie
d spark plu g:
NGK/CPR8EA-9
1. Spark plug gap
Spark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 12.5 N·m (1.25 kgf·m, 9.22 lb·ft)
UB9YE0E0.book Page 9 Wednesday, January 6, 2021 3:03 PM

Periodic maintenance an d a djustment
8-12
8 6. Install engine oil drain bolt A and
its new gasket, and then tighten
both drain bolts to their specified
torques.
7. 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
ECA24060
Make sure that no forei gn material
enters the crankcase.
8. 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.
9. Turn the engine off, and then check the oil level and correct it if
necessary.
10. Reset the oil change tripmeter and oil change indicator “OIL”. (See
page 5-7 for reset procedures.)
EAU20067
Final transmission oilThe 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 transmis-
sion 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 center- stand.
3. Place an oil pan under the final transmission case to collect the
used oil.
4. Remove the final transmission oil filler cap and its O-ring from the fi-
nal transmission case.
Tightenin g torque:
Engine oil drain bolt A: 20 N·m (2.0 kgf·m, 15 lb·ft)
Engine oil drain bolt B:
20 N·m (2.0 kgf·m, 15 lb·ft)
Recommen ded en gine oil:
See page 10-1.
Oil quantity: 0.90 L (0.95 US qt, 0.79 Imp.qt)
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Periodic maintenance an d a djustment
8-13
8
5. Remove the final transmission oil
drain bolt and its gasket to drain
the oil from the final transmission
case. 6. Install the final transmission oil
drain bolt and its new gasket, and
then tighten the bolt to the speci-
fied torque.
7. Refill with the specified amount of the recommended final transmis-
sion oil. WARNING! Make sure
that no forei gn material enters
the final transmission case.
Make sure that no oil gets on
the tire or wheel.
[EWA11312]
8. Install the final transmission oil fill- er cap and its new O-ring, and
then tighten the oil filler cap.
9. Check the final transmission case for oil leakage. If oil is leaking,
check for the cause.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAUM4331
To check the coolant level1. Place the vehicle on the center- stand.
1. Final transmission oil filler cap
2. O-ring
1. Final transmission oil drain bolt
2. GasketZAUM1945
1
2
ZAUM1946
12
Ti ghtenin g torque:
Final transmission oil drain bolt: 20 N·m (2.0 kgf·m, 15 lb·ft)
Recommen ded final transmission
oil: See page 10-1.
Oil quantity: 0.10 L (0.11 US qt, 0.09 Imp.qt)
Recommen ded coolant:
YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark): 0.13 L (0.14 US qt, 0.11 Imp.qt)
Radiator (including all routes): 0.46 L (0.49 US qt, 0.40 Imp.qt)
UB9YE0E0.book Page 13 Wednesday, January 6, 2021 3:03 PM