light YAMAHA XMAX 300 2021 Owner's Manual

Periodic maintenance an d a djustment
7-9
7
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/LMAR8A-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)
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Periodic maintenance an d a djustment
7-10
7
EAU36112
CanisterThis model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the
following:
 Check each hose connection. 
Check each hose and canister for
cracks or damage. Replace if
damaged.
 Make sure that the canister
breather is not blocked, and if
necessary, clean it.
EAUM3980
Engine oil an d oil filter ele-
mentThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the en gine 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 locat-
ed at the bottom-right side of the
crankcase.TIPThe engine oil should be between the
minimum and maximum level marks.
1. Canister
2. Canister breather hose
2
1
ZAUM1458
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Periodic maintenance an d a djustment
7-14
7
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.
EAU78580
To check the coolant level
1. Place the vehicle on the center- stand.
TIPThe coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
 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 through
the check window.TIPThe coolant should be between the
minimum and maximum level marks.
3. If the coolant is at or below theminimum level mark, remove the
left floorboard mat by pulling it up.
4. Remove the coolant reservoir cov- er.
Recommen ded coolant:
YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark):0.18 L (0.19 US qt, 0.16 Imp.qt)
Radiator (including all routes): 1.10 L (1.16 US qt, 0.97 Imp.qt)
1. Coolant level check window
2. Maximum level mark
3. Minimum level mark
1
23
1. Floorboard mat
1. Coolant reservoir cover
1
1
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Periodic maintenance an d a djustment
7-18
7 4. Remove the air filter case bolts.
5. Lift up the air filter case slightly, re-
move the rear wheel sensor lead
from the holder, and then remove
the V-belt case cover. 6. Remove the V-belt case air filter
cover by removing the bolts. 7. Remove the air filter element, and
then blow out the dirt with com-
pressed air from the clean side as
shown.
8. Check the V-belt case air filter ele- ment for damage and replace it if
necessary.
1. Screw
1. Bolt
1
1
1
1. Rear wheel sensor lead
2. Lead holder
1. V-belt case air filter cover
2. Bolt
1
2
2
1
2
2
1. V-belt case air filter element
1. Clean side
1
1
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Periodic maintenance an d a djustment
7-30
7 nect the positive lea
d before
connectin g the ne gative lead .
[ECA16842]
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.NOTICE
ECA16531
Always keep the b attery charged .
Storin g a d ischar ged battery can
cause permanent battery dama ge.
EAU78242
Replacin g the fusesThe main fuse and the fuse boxes,
which contain the fuses for the individ-
ual circuits, are located under panel A.
(See page 7-8.)TIPTo access the main fuse, remove the
starter relay cover as shown.
If a fuse is blown, replace it as follows.
1. Turn the main switch off and turn off the electrical circuit in ques-
tion.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
1. Fuse box
2. Main fuse
3. Spare main fuse
4. Starter relay coverZAUM15281
23
4
1. Signaling system fuse 2
2. Signaling system fuse
3. ABS control unit fuse
4. Main fuse 2
5. Radiator fan motor fuse
6. Backup fuse
7. Spare fuse
8. ABS motor fuse
9. ABS solenoid fuse
10.Turn signal light and hazard fuse
11.Terminal fuse 1 (for auxiliary DC jack)
12.Answer back fuseZAUM1529
1
2
3
4
5
6 7
891011
7
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Periodic maintenance an d a djustment
7-31
7
ratin
g than recommen ded to
avoi d causin g extensive dam-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
3. Turn the main switch on and turn
on the electrical circuit in question
to check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
EAU64070
Hea dlig htsThis model is equipped with LED-type
headlights.
If a headlight does not come on, have
a Yamaha dealer check its electrical
circuit.NOTICE
ECA16581
Do not affix any type of tinted film or
stickers to the head lig ht lens.
Specifie d fuses:
Main fuse: 20.0 A
Main fuse 2:
7.5 A
Terminal fuse 1: 2.0 A
Signaling system fuse: 10.0 A
Signaling system fuse 2:
7.5 A
Radiator fan motor fuse: 7.5 A
Backup fuse: 7.5 A
Turn signal light and hazard fuse:
7.5 A
ABS control unit fuse: 7.5 A
ABS motor fuse: 30.0 A
ABS solenoid fuse:
15.0 A
Answer back fuse: 2.0 A
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Periodic maintenance an d a djustment
7-32
7
EAU54502
Auxiliary lig htsThis model is equipped with LED-type
auxiliary lights.
If an auxiliary light does not come on,
have a Yamaha dealer check it.
EAU70540
Brake/tail lightThis model is equipped with an LED-
type brake/tail light.
If the brake/tail light does not come on,
have a Yamaha dealer check it.
EAU39881
Front turn si gnal li ghtIf a front turn signal light does not
come on, have a Yamaha dealer check
its electrical circuit or replace the bulb.
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Periodic maintenance an d a djustment
7-33
7
EAUT1331
Rear turn si gnal li ght bul bIf a rear turn signal light does not come
on, have a Yamaha dealer check the
electrical circuit or replace the bulb.
EAU78560
Replacin g the license plate
lig ht bul b1. Remove the license plate light unit
by removing the bolts and plate,
and then remove the license plate
light bulb socket (together with the
bulb) by pulling it out.
2. Remove the burnt-out bulb by pulling it out. 3. Insert a new bulb into the socket.
4. Install the socket (together with
the bulb) by pushing it in, and then
install the license plate light unit by
installing the plate and bolts.1. License plate light unit
2. Bolt
3. Nut
4. License plate light bulb socketZAUM1538
1
4
3 2
1. License plate light bulbZAUM1539
1
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Periodic maintenance an d a djustment
7-37
7
EAU76561
Emer gency mo de When the smart key is lost or dam-
aged, or its battery has discharged, the
vehicle can still be turned on and the
engine started. You will need the smart
key system identification number.
To operate the vehicle in emer gency
mo de
1. Stop the vehicle in a safe place and turn the main switch to “OFF”.
2. Push the main switch knob for 5 seconds until the smart key sys-
tem indicator light flashes once,
then release it. Repeat two more
times. The smart key system indi-
cator light will come on for three
seconds to indicate the transition
to emergency mode. 3. After the smart key system indica-
tor light goes off, input the identifi-
cation number as follows. 4. Inputting the identification number
is done by counting the number of
flashes of the smart key system in-
dicator light.
For example, if the identification
number is 123456:
Push and hold the knob.
↓
The smart key system indicator
light will start to flash.
↓
Release the knob after the smart
key system indicator light flashes
once.
↓
The first digit of the identification
number has been set as “1”.
↓
Push and hold the knob again.
↓
1. Smart key system indicator light “ ”
1. Identification number card
2. Identification numberZAUM1530
1
868588
1
2
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Periodic maintenance an d a djustment
7-38
7 Release the knob after the smart
key system indicator light flashes
twice.
↓
The second digit has been set as
“2”.
↓
Repeat the above procedure until
all digits of the identification num-
ber have been set. The smart key
system indicator light will flash for
10 seconds if the correct identifi-
cation number was entered.
TIPWhen one of the following situations
applies, emergency mode will be ter-
minated and the smart key system in-
dicator light will flash quickly for 3
seconds. In this case, start over again
from step 2. 
When there are no knob opera-
tions for 10 seconds during the
identification number input pro-
cess.
 When the smart key system indi-
cator light is allowed to flash nine
or more times.
 The identification number is not
entered correctly.
5. While the smart key system indi-
cator light is on, push the knob
once more to complete emergen-
cy mode access. The smart key
indicator light will go off and then
come back on for approximately 4
seconds.
6. While the smart key system indi- cator light is on, turn the main
switch to “ON”. The vehicle can
now be operated normally.
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