2021 YAMAHA TRICITY 300 engine overheat

Instrument and control functions
5-1
5
EAU4939P
In dicator li ghts an d warnin g
li g hts
EAU88900
Turn si gnal in dicator li ghts “ ”
an d“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
EAU88910
Hi gh beam in dicator li ght “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU89121
Parkin g b rake in dicator li ght “ ”
This indicator light comes on when the
parking brake is applied.
EAU88880
Coolant temperature warnin g
li g ht “ ”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool. (See page 8-39.)
For vehicles with a radiator fan, the ra-
diator fan(s) automatically switch on or
off according to the coolant tempera-
ture.
TIPWhen the vehicle is turned on, the light
will 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 the vehicle.NOTICE
ECA10022
Do not continue to operate the en-
g ine if it is overheatin g.
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.
1. ABS warning light “ ”
2. Smart key system indicator light “ ”
3. Left turn signal indicator light “ ”
4. Coolant temperature warning light “ ”
5. Parking brake indicator light “ ”
6. Standing assist indicator light “ ”
7. High beam indicator light “ ”
8. Standing assist warning light “ ”
9. Right turn signal indicator light “ ”
10.Traction control system indicator light “ ”
11.Malfunction indicator light “ ”1
11
2
3
4
5
6
7
8
9
10
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Operation and important ri din g points
7-1
7
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which coul d cause an acci dent
or injury.
EAU16842
En gine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAU88951
0–1000 km (0–600 mi)
Avoid prolonged operation above 4500
r/min. NOTICE: After 1000 km (600
mi) of operation, be sure to replace
the en gine oil, final transmission oil
an d the oil filter element.
[ECA12932]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 5400
r/min. 1600 km (1000 mi) an
d b eyon d
The vehicle can now be operated nor-
mally.
NOTICE
ECA23060
 Keep the en gine spee d out of
the tachometer hi gh-r/min
zone.
 If any en gine trou ble shoul d oc-
cur during the en gine break-in
perio d, imme diately have a
Yamaha dealer check the vehi-
cle.
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Periodic maintenance an d a djustment
8-39
8
EAU86420
En gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stopped , press down on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
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12-1
12
Index
AABS....................................................... 5-13
ABS warning light ................................... 5-2
Acceleration and deceleration ................ 7-3
Air filter and V-belt case air filter
elements ............................................. 8-17
Air temperature display .......................... 5-8
Auxiliary DC jack .................................. 5-20BBattery .................................................. 8-32
Brake fluid, changing............................ 8-27
Brake fluid level, checking.................... 8-26
Brake lever, front .................................. 5-10
Brake lever, rear ................................... 5-11
Brake levers, lubricating ....................... 8-28
Brake pedal .......................................... 5-11
Brake pedal, checking and lubricating........................................... 8-29
Braking ................................................... 7-3CCables, checking and lubricating ......... 8-28
Canister ................................................ 8-11
Care ........................................................ 9-1
Catalytic converter ............................... 5-18
Centerstand and sidestand, checking and lubricating ................................... 8-29
Clock ...................................................... 5-5
Coolant ................................................. 8-15
Coolant temperature warning light ......... 5-1DData recording, vehicle......................... 11-2
Diagnostic connector ........................... 11-2
Dimmer/Pass switch............................... 5-9
Display units, switching .......................... 5-4
EEmergency mode ................................. 8-40
Engine break-in ...................................... 7-1
Engine oil and oil filter element ............ 8-12
Engine overheating .............................. 8-39
Engine serial number ........................... 11-1FFinal transmission oil............................ 8-14
Front and rear brake pads, checking ... 8-25
Front brake lever free play, checking ... 8-24
Front fork, checking ............................. 8-30
Fuel ...................................................... 5-16
Fuel consumption, tips for reducing ...... 7-4
Fuel meter .............................................. 5-4
Fuel tank cap........................................ 5-15
Fuel tank overflow hose ....................... 5-18
Fuses, replacing ................................... 8-33HHandlebar switches ............................... 5-9
Hazard switch ...................................... 5-10
High beam indicator light ....................... 5-1
Horn switch ............................................ 5-9IIdentification numbers ......................... 11-1
Ignition circuit cut-off system .............. 5-22
Indicator lights and warning lights ......... 5-1KKey, handling of smart and mechanical keys...................................................... 3-3LLicense plate light bulb, replacing ....... 8-36MMain switch ............................................ 3-7
Maintenance and lubrication, periodic... 8-4 Maintenance, emission control
system .................................................. 8-3
Malfunction indicator light (MIL) ............. 5-1
Matte color, caution................................ 9-1
Model label ........................................... 11-1
Multi-function display ............................. 5-5
Multi-function meter unit ........................ 5-3
OOperating range of the smart key system .................................................. 3-2PPanel, removing and installing ................ 8-9
Parking.................................................... 7-4
Parking brake, checking ....................... 8-25
Parking brake indicator light ................... 5-1
Parking brake lever ............................... 5-12
Part locations.......................................... 2-1RRear brake lever free play, checking .... 8-24SSafe-riding points ................................... 1-5
Safety information................................... 1-1
SEL/RES switch .................................... 5-10
Shock absorber assemblies, adjusting ............................................. 5-20
Sidestand.............................................. 5-21
Smart key................................................ 3-4
Smart key battery, replacing................... 3-6
Smart key system ................................... 3-1
Smart key system indicator light ............ 5-3
Smart key system, troubleshooting ...... 8-37
Spark plug, checking ............................ 8-10
Specifications ....................................... 10-1
Speedometer .......................................... 5-4
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