2021 YAMAHA XMAX 300 check engine

Scooter care and stora ge
8-4
8 1. Make all necessary repairs and
perform any outstanding mainte-
nance.
2. Follow all instructions in the Care section of this chapter.
3. Fill up the fuel tank, adding fuel stabilizer according to product in-
structions. Run the engine for 5
minutes to distribute treated fuel
through the fuel system.
4. For vehicles equipped with a fuel cock: Turn the fuel cock lever to
the off position.
5. For vehicles with a carburetor: To prevent fuel deposits from build-
ing up, drain the fuel in the carbu-
retor float chamber into a clean
container. Retighten the drain bolt
and pour the fuel back into the fuel
tank.
6. Use a quality engine fogging oil according to product instructions
to protect internal engine compo-
nents from corrosion. If engine
fogging oil is not available, per-
form the following steps for each
cylinder:a. Remove the spark plug cap and spark plug. b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
WARNING! To prevent d am-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
7. Lubricate all control cables, piv- ots, levers and pedals, as well as
the sidestand and centerstand (if
equipped).
8. Check and correct the tire air pressure, and then lift the vehicle
so that all wheels are off the
ground. Otherwise, turn the wheels a little once a month in or-
der to prevent the tires from be-
coming degraded in one spot.
9. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
10. Remove the battery and fully charge it, or attach a maintenance
charger to keep the battery opti-
mally charged. NOTICE: Confirm
that the battery an d its char ger
are compati ble. Do not char ge a
VRLA battery with a convention-
al char ger.
[ECA26330]
TIP If the battery will be removed,
charge it once a month and store
it in a temperate location between
0-30 °C (32-90 °F).
 See page 7-29 for more informa-
tion on charging and storing the
battery.
UBBAE0E0.book Page 4 Thursday, September 24, 2020 3:19 PM

Consumer information
10-2
10The model label is affixed to the inside
of the rear storage compartment. (See
page 4-20.) Record the information on
this label in the space provided. This
information will be needed when order-
ing spare parts from a Yamaha dealer.
EAU69910
Dia
gnostic connectorThe diagnostic connector is located as
shown.
EAU85300
Vehicle data recor din gThis model’s ECU stores certain vehi-
cle data to assist in the diagnosis of
malfunctions and for research, statisti-
cal analysis and development purpos-
es.
Although the sensors and recorded
data will vary by model, the main data
points are:
 Vehicle status and engine perfor-
mance data
 Fuel-injection and emission-relat-
ed data
This data will be uploaded only when a
special Yamaha diagnostic tool is at-
tached to the vehicle, such as when
maintenance checks or service proce-
dures are performed.
Vehicle data uploaded will be handled
appropriately according to the follow-
ing Privacy Policy.
Privacy Policy
1. Diagnostic connectorZAUM18121
https://www.yamaha-motor.eu/eu/
privacy/privacy-policy.aspx
UBBAE0E0.book Page 2 Thursday, September 24, 2020 3:19 PM

11-1
11
IndexAABS warning light ................................... 4-2
Acceleration and deceleration ................ 6-3
Air filter and V-belt case air filter
elements ............................................. 7-15
Anti-lock brake system (ABS) ............... 4-14
Auxiliary DC jack ................................... 4-25
Auxiliary lights ....................................... 7-32BBattery .................................................. 7-29
Brake fluid, changing ............................ 7-25
Brake fluid level, checking .................... 7-23
Brake lever, front .................................. 4-13
Brake lever, rear.................................... 4-14
Brake levers, lubricating ....................... 7-26
Brake/tail light ....................................... 7-32
Braking.................................................... 6-3CCables, checking and lubricating ......... 7-25
Canister................................................. 7-10
Care ........................................................ 8-1
Catalytic converter ................................ 4-20
Centerstand and sidestand, checking
and lubricating .................................... 7-27
Coolant ................................................. 7-14DData recording, vehicle ......................... 10-2
Diagnostic connector............................ 10-2
Dimmer/Pass switch ............................. 4-12EEmergency mode.................................. 7-37
Engine break-in....................................... 6-1
Engine oil and oil filter element ............. 7-10
Engine overheating ............................... 7-36 Engine serial number ............................ 10-1
FFinal transmission oil ............................ 7-13
Front and rear brake lever free play,
checking............................................. 7-22
Front and rear brake pads, checking ... 7-23
Front fork, checking ............................. 7-27
Front turn signal light............................ 7-32
Fuel ....................................................... 4-18
Fuel consumption, tips for reducing ...... 6-4
Fuel tank cap ........................................ 4-17
Fuel tank overflow hose ....................... 4-19
Fuses, replacing ................................... 7-30HHandlebar position, adjusting .............. 4-24
Handlebar switches .............................. 4-12
Hazard switch....................................... 4-13
Headlights ............................................ 7-31
High beam indicator light ....................... 4-1
Horn switch .......................................... 4-12IIdentification numbers .......................... 10-1
Ignition circuit cut-off system ............... 4-27
Indicator lights and warning lights ......... 4-1KKey, handling of smart and mechanical keys ...................................................... 3-3LLicense plate light bulb, replacing........ 7-33MMain switch ............................................ 3-8
Maintenance and lubrication, periodic ... 7-4
Maintenance, emission control system.................................................. 7-3 Malfunction indicator light (MIL)..............4-1
Matte color, caution ................................8-1
Model label ...........................................10-1
Multi-function display .............................4-4
OOperating range of the smart key
system ..................................................3-2PPanel, removing and installing ................7-8
Parking ....................................................6-4
Part locations ..........................................2-1SSafe-riding points....................................1-5
Safety information ...................................1-1
Shock absorber assemblies, adjusting .............................................4-25
Sidestand ..............................................4-26
Smart key ................................................3-5
Smart key battery, replacing ...................3-6
Smart key system ...................................3-1
Smart key system indicator light.............4-2
Smart key system, troubleshooting ......7-34
Spark plug, checking ..............................7-9
Specifications .........................................9-1
Speedometer ..........................................4-3
Starting off ..............................................6-3
Starting the engine ..................................6-2
Steering, checking ................................7-28
Stop/Run/Start switch ..........................4-13
Storage ...................................................8-3
Storage compartments .........................4-20TTachometer .............................................4-3
UBBAE0E0.book Page 1 Thursday, September 24, 2020 3:19 PM