2021 YAMAHA XMAX 300 check engine

Table of contentsSafety information ............................ 1-1
Further safe-riding points ............... 1-5
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Smart key system ........................... 3-1
Smart key system ........................... 3-1
Operating range of the smart key system......................................... 3-2
Handling of the smart key and mechanical keys ......................... 3-3
Smart key ....................................... 3-5
Replacing the smart key battery..... 3-6
Main switch .................................... 3-8
Instrument an d control functions ... 4-1
Indicator lights and warning
lights............................................ 4-1
Speedometer .................................. 4-3
Tachometer .................................... 4-3
Multi-function display ..................... 4-4
Handlebar switches ...................... 4-12
Front brake lever .......................... 4-13
Rear brake lever ........................... 4-14
Anti-lock brake system (ABS)....... 4-14
Traction control system ................ 4-15
Fuel tank cap ................................ 4-17
Fuel ............................................... 4-18 Fuel tank overflow hose ................ 4-19
Catalytic converter ........................ 4-20
Storage compartments ................. 4-20
Windshield .................................... 4-22
Handlebar position ....................... 4-24
Adjusting the shock absorber
assemblies ................................. 4-25
Auxiliary DC jack .......................... 4-25
Sidestand ...................................... 4-26
Ignition circuit cut-off system ....... 4-27
For your safety – pre-operation
checks ............................................... 5-1
Operation an d important ri din g
points ................................................. 6-1
Engine break-in ............................... 6-1
Starting the engine .......................... 6-2
Starting off ...................................... 6-3
Acceleration and deceleration ........ 6-3
Braking ............................................ 6-3
Tips for reducing fuel consumption ................................ 6-4
Parking ............................................ 6-4
Perio dic maintenance an d
a d justment ........................................ 7-1
Tool kit ............................................ 7-2
Periodic maintenance charts .......... 7-3
Periodic maintenance chart for the emission control system .............. 7-3 General maintenance and
lubrication chart .......................... 7-4
Removing and installing the panel............................................ 7-8
Checking the spark plug................. 7-9
Canister ........................................ 7-10
Engine oil and oil filter element..... 7-10
Final transmission oil .................... 7-13
Coolant ......................................... 7-14
Air filter and V-belt case air filter elements .................................... 7-15
Checking the throttle grip free play ............................................ 7-19
Valve clearance............................. 7-20
Tires .............................................. 7-20
Cast wheels .................................. 7-22
Checking the front and rear brake
lever free play ............................ 7-22
Checking the front and rear brake pads .......................................... 7-23
Checking the brake fluid level ...... 7-23
Changing the brake fluid .............. 7-25
Checking the V-belt ...................... 7-25
Checking and lubricating the cables ........................................ 7-25
Checking and lubricating the
throttle grip and cable ............... 7-26
Lubricating the front and rear brake levers ............................... 7-26
Checking and lubricating the centerstand and sidestand........ 7-27UBBAE0E0.book Page 1 Thursday, September 24, 2020 3:19 PM

Safety information
1-3
1Avoi
d Car bon Monoxi de Poisonin g
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be pres-
ent even if you do not see or smell any
engine exhaust. Deadly levels of car-
bon monoxide can collect rapidly and
you can quickly be overcome and un-
able to save yourself. Also, deadly lev-
els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.  Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
 Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports. 
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loa din g
Adding accessories or cargo to your
scooter can adversely affect stability
and handling if the weight distribution
of the scooter is changed. To avoid the
possibility of an accident, use extreme
caution when adding cargo or acces-
sories to your scooter. Use extra care
when riding a scooter that has added
cargo or accessories. Here, along with
the information about accessories be-
low, are some general guidelines to fol-
low if loading cargo to your scooter:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloa ded vehicle
coul d cause an acci dent.
When loading within this weight limit,
keep the following in mind: 
Cargo and accessory weight
should be kept as low and close to
the scooter as possible. Securely
pack your heaviest items as close
to the center of the vehicle as pos-
sible and make sure to distribute
the weight as evenly as possible
on both sides of the scooter to
minimize imbalance or instability.
 Shifting weights can create a sud-
den imbalance. Make sure that
accessories and cargo are se-
curely attached to the scooter be-
fore riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy items to the handlebar, front
fork, or front fender. Such items
can create unstable handling or
a slow steering response.
 This vehicle is not desi gne d to
pull a trailer or to be attached to
a si decar.
Maximum loa d:
161 kg (355 lb)
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Description
2-2
2
EAU10421
Right view
2
3
4
5,6
1
9
8
7
1. Rear storage compartment (page 4-20)
2. Fuel tank cap (page 4-17)
3. Storage compartment B (page 4-20)
4. Windshield (page 4-22)
5. Battery (page 7-29)
6. Fuses (page 7-30)
7. Centerstand (page 7-27)
8. Engine oil level check window (page 7-10) 9. Engine oil filler cap (page 7-10)
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Instrument and control functions
4-1
4
EAU4939N
In dicator li ghts an d warnin g
li g hts
EAU11032
Turn si gnal in dicator li ghts “ ”
an d“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
EAU11081
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU88711
Malfunction in dicator li ght
(MIL) “ ”
This light comes on or flashes if a prob-
lem is detected in the engine or other
vehicle control system. If this occurs,
have a Yamaha dealer check the on-
board diagnostic system. The electri-
cal circuit of the warning light can be
checked by vehicle power on. The light
should come on for a few seconds,
and then go off. If the light does not
come on initially when the vehicle pow-
er on, or if the light remains on, have a
Yamaha dealer check the vehicle.NOTICE
ECA26820
If the MIL starts flashin g, re duce en-
g ine spee d to prevent exhaust sys-
tem damag e.
TIPThe engine is sensitively controlled for
the on-board diagnostic system to de-
tect deterioration and malfunction of
the emission control system. Due to
this specification, the MIL may come
on or flash for vehicle modifications,
lack of maintenance, or excessive or
improper use of the vehicle. To prevent
this, observe these precautions.
 Do not attempt to modify the soft-
ware of the engine control unit.
 Do not add any electrical acces-
sories that interfere with engine
control.
 Do not use aftermarket accesso-
ries or parts such as suspension,
spark plugs, injectors, exhaust
system, etc.
 Do not change drivetrain specifi-
cations (chain, sprockets, wheels,
tires, etc.).
 Do not remove or alter the O2 sen-
sor, air induction system, or ex-
haust parts (catalysts or EXUP,
etc.).
 Maintain proper V-belt and drive
belt (if equipped).
1. Left turn signal indicator light “ ”
2. Right turn signal indicator light “ ”
3. High beam indicator light “ ”
4. Anti-lock Brake System (ABS) warning
light “ ”
5. Malfunction indicator light “ ”
6. Traction control system indicator light “ ”
7. Smart key system indicator light “ ”ZAUM1548
1
2
ABS
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Instrument and control functions
4-2
4

Maintain correct tire pressure.
 Do not operate the vehicle in an
extreme manner. For example, re-
peated or excessive opening and
closing of the throttle, racing,
burnouts, wheelies, etc.
EAU78173
ABS warnin g lig ht “ ”
This warning light comes on when the
vehicle is first turned on, and goes off
after starting riding. If the warning light
comes on while riding, the anti-lock
brake system may not work correctly.
WARNING
EWA16043
If the ABS warnin g li ght does not
turn off after reachin g 10 km/h (6
mi/h), or if the warnin g lig ht comes
on while ri din g:
 Use extra caution to avoi d pos-
si ble wheel lock durin g emer-
g ency brakin g.
 Have a Yamaha dealer check
the vehicle as soon as possi ble.
TIPIf the engine is revved while the brakes
are applied or the vehicle is on its cen-
terstand (if equipped), the ABS warning
light may come on. If this happens, turn
the vehicle power off and then back on
again to reset the ABS warning light.
EAU78591
Traction control system in dicator
li g ht “TCS”
This indicator light will flash when trac-
tion control has engaged.
If the traction control system is turned
off, this indicator light will come on.
(See page 4-15.)TIPWhen the vehicle is turned on, the light
should come on for a few seconds and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check vehicle.
EAU78600
Smart key system in dicator
li g ht “ ”
This indicator light communicates the
status of the smart key system. When
the smart key system is operating nor-
mally, this indicator light will be off. If
there is an error in the smart key sys-
tem, the indicator light will flash. The
indicator light will also flash when com-
munication between the vehicle and
smart key takes place and when cer-
tain smart key system operations are
carried out.
ABS
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Instrument and control functions
4-5
4 5. Push the “TRIP” switch for three
seconds, and then release it. The
minute digits will start flashing.
6. Use the “TRIP” switch to set the minutes.
7. Push the “TRIP” switch for three seconds, and then release it to
start the clock.
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The segments of
the fuel meter disappear from “F” (full)
towards “E” (empty) as the fuel level
decreases. When the last segment of
the fuel meter starts flashing, refuel as
soon as possible.
TIP If a problem is detected in the fuel
meter, the all segments will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.
 When approximately 2.4 L (0.63
US gal, 0.53 Imp.gal) of fuel re-
mains in the fuel tank, the last seg-
ment of the fuel meter will start
flashing. The display will automat-
ically change to the fuel reserve
tripmeter “F Trip” and start count-
ing the distance traveled from that
point.Coolant temperature meter The coolant temperature meter indi-
cates the temperature of the coolant.
If the top segment flashes, stop the ve-
hicle, then stop the engine, and let the
engine cool. (See page 7-36.)
NOTICE
ECA10022
Do not continue to operate the en-
g
ine if it is overheatin g.TIP If a problem is detected in the
coolant temperature meter, all
segments will flash repeatedly. If
this occurs, have a Yamaha dealer
check the vehicle as soon as pos-
sible.
 The coolant temperature varies
with changes in the weather and
engine load.
1. Fuel meterZAUM14831
1. Coolant temperature meterZAUM1484
1
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Instrument and control functions
4-10
4
This display shows the current charge
state of the battery.
TIP
If the engine turns over slowly
when using the start switch, have
a Yamaha dealer charge the bat-
tery.
 If “---” appears in the battery volt-
age display, have a Yamaha deal-
er check the battery.Traction control system display
This display shows the current status
of the traction control system. (See
page 4-15.)  “TCS ON”: the system is on
 “TCSOFF”: the system is off
TIPIf only “TCS” is displayed, there is a
communication error within the vehi-
cle. Have a Yamaha dealer check the
vehicle as soon as possible.Avera ge fuel consumption display
This function calculates the average
fuel consumption since it was last re-
set.
The average fuel consumption can be
displayed as either “Consump-
tion/Average_ _._ km/L”, “Consump-
tion/Average_ _._ L/100 km” or
“Consumption/Average_ _ _._ MPG”
(for the UK). 
“Consumption/Average_ _._
km/L”: The average distance that
can be traveled on 1.0 L of fuel is
shown.
 “Consumption/Average_ _._
L/100 km”: The average amount
of fuel necessary to travel 100 km
is shown.
 “Consumption/Average_ _ _._
MPG” (for the UK): The average
distance that can be traveled on
1.0 Imp.gal of fuel is shown.
To reset the average fuel consumption,
push the “INFO” switch for at least
three seconds.
TIPAfter resetting the average fuel con-
sumption, “_ _._” will be shown until
the vehicle has traveled 1 km (0.6 mi).
1. Traction control system displayZAUM1493
1
1. Average fuel consumption displayZAUM1494
1
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Instrument and control functions
4-16
4
TIPTurn the traction control system off to
help free the rear wheel if the vehicle
gets stuck in mud, sand, or other soft
surfaces.NOTICE
ECA16801
Use only the specifie d tires. (See
pa ge 7-20.) Usin g different sized
tires will prevent the traction control
system from controllin g tire rotation
accurately.
Resettin g the traction control sys-
tem
The traction control system will auto-
matically disable under certain condi-
tions; such as when a sensor fault is
detected, or when only one wheel is al-
lowed to rotate for more than a few
seconds. Should this happen, the “ ”
indicator light will come on, and possi-
bly the “ ” warning light, too.TIPWhen the vehicle is on the centerstand,
do not rev the engine for an extended
period of time. Otherwise, the traction
control system will automatically dis-
able and need to be reset.
If the traction control system automat-
ically disables, try resetting it as fol-
lows. 1. Stop the vehicle and turn it off completely.
2. Wait a few seconds and then turn the vehicle power on.
3. The “ ” indicator light should turn off and the system be en-
abled.TIPIf the “ ” indicator light remains on af-
ter resetting, the vehicle may still be
ridden; however, have a Yamaha deal-
er check the vehicle as soon as possi-
ble.4. Have a Yamaha dealer check thevehicle and turn off the “ ”
warning light.
1. Traction control system indicator light “ ”
2. Traction control system displayZAUM1536
1
2
1. Traction control system indicator light “ ”
2. Engine trouble warning light “ ”ZAUM1550
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