2021 YAMAHA TRICITY 300 engine

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
UBEDE0E0.book Page 1 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-2
5
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).
 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.
EAU88890
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 li ght 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.
TIPThe ABS warning light may come on
while revving the engine with the vehi-
cle on its centerstand, but this does
not indicate a malfunction.
EAU88930
Traction control system in dicator
li g ht “ ”
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 5-14.)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.
EAU89252
Stan din g assist in dicator li ght “ ”
This indicator light flashes when the
standing assist can be used.
UBEDE0E0.book Page 2 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-3
5 The indicator light comes on when the
standing assist is engaged.
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, have a Yamaha dealer check the
vehicle.
EAU89262
Stan
din g assist warnin g lig ht “ ”
This warning light comes on if a prob-
lem is detected in the standing assist.
If this occurs, have a Yamaha dealer
check the system.TIP Depending on the problem, the
engine speed may be limited and
the vehicle cannot be driven nor-
mally.
 When the vehicle is turned on, the
light will come on for a few sec-
onds, and then go off. If the light
does not come on, or if the light
remains on, have a Yamaha dealer
check the vehicle.
EAU78083
Smart key system in dicator
li g ht “ ”
This indicator light will flash when com-
munication between the vehicle and
smart key takes place and when cer-
tain smart key system operations are
carried out.
The indicator light may also flash when
there is an error in the smart key sys-
tem.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 the vehicle.
EAU86811
Multi-function meter unit1. Fuel meter
2. Clock
3. Icy road warning indicator “ ”
4. Tachometer
5. Speedometer
6. Multi-function display
1. “SEL/RES” switch1
2
3
4
5
6
1
UBEDE0E0.book Page 3 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-4
5
WARNING
EWA12423
Be sure to stop the vehicle before
makin g any settin g chan ges to the
multi-function meter unit. Chang ing
settin gs while ri din g can distract the
operator an d increase the risk of an
acci dent.
EAU89230
Switchin g the display units
The display units can be switched be-
tween kilometers and miles.
To switch the display units1. Turn the vehicle off.
2. While pushing the “SEL” switch, turn the vehicle on.
3. Continue to push the “SEL” switch for at least 5 seconds.
EAU86831
Spee dometer
The speedometer shows the vehicle’s
traveling speed.
EAU87180
Tachometer
The tachometer allows the rider to
monitor the engine speed and keep it
within the ideal power range.NOTICE
ECA23050
Do not operate the en gine in the ta-
chometer hi gh-r/min zone.
Hi gh-r/min zone: 9000 r/min an d
a b ove
EAU86841
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When approximately
2.4 L (0.63 US gal, 0.53 Imp.gal) of fuel
remains, the last segment starts flash-
ing. Refuel as soon as possible.TIPIf a problem is detected in the electrical
circuit, the fuel level segments will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.
1. Tachometer
2. High-r/min zone
1
2
1. Fuel meter
1
UBEDE0E0.book Page 4 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-6
5
EAU89140
Tripmeters
The tripmeters show the distance trav-
eled since they were last reset.
To reset a tripmeter, change the dis-
play to the tripmeter you want to reset,
and then push the “RES” switch until it
is reset.TIPThe tripmeters will reset and continue
counting after 9999.9 is reached.
EAU89150
Fuel reserve tripmeter
If the last segment of the fuel meter
starts flashing, the display automati-
cally changes to the fuel reserve trip-
meter “TRIP F” and starts counting the
distance traveled from that point.
To reset the fuel reserve tripmeter,
push the “RES” switch until it is reset.TIPIf you do not reset the fuel reserve trip-
meter manually, it will reset automati-
cally and disappear from the display
after refueling and traveling 5 km (3 mi).
EAU89161
Oil chan ge tripmeter
This tripmeter shows the distance trav-
eled since the last engine oil change.
The oil change indicator “OIL” will flash
at the initial 1000 km (600 mi), the next
4000 km (2500 mi), and then every
5000 km (3000 mi) thereafter.
To reset the oil change tripmeter and
oil change indicator, select the oil
change tripmeter, and then push the
“RES” switch until the tripmeter starts
flashing. While the tripmeter is flashing,
push the “RES” switch until the tripme-
ter is reset.
TIPWhen the engine oil has been
changed, the oil change tripmeter and
the oil change indicator must be reset.
Otherwise, the oil change indicator will
not come on at the correct time.
EAU89172
V- belt replacement tripmeter
This tripmeter shows the distance trav-
eled since the V-belt was last replaced.
The V-belt replacement indicator
“BELT” will flash at every 20000 km
(12500 mi) to indicate that the V-belt
should be replaced.
1. Oil change indicator “OIL”
2. Oil change tripmeter
2
1
1.
2. V-belt replacement tripmeter
2
1
UBEDE0E0.book Page 6 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-10
5
To disengage the standing assist,
press the switch twice.
EAU54213
Stop/Run/Start switch “ / / ”
To crank the engine with the starter,
set this switch to “ ”, and then push
the switch down towards “ ”. See
page 7-2 for starting instructions prior
to starting the engine.
Set this switch to “ ” to stop the en-
gine in case of an emergency, such as
when the vehicle overturns or when the
throttle cable is stuck.
EAU79500
Hazar
d switch “ ”
With the main switch in the “ON” posi-
tion, use this switch to turn on the haz-
ard lights (simultaneous flashing of all
turn signal lights).
The hazard lights are used in case of an
emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.
NOTICE
ECA10062
Do not use the hazar d lig hts for an
exten ded len gth of time with the en-
g ine not runnin g, otherwise the bat-
tery may d ischarge.
EAU88941
“SEL/RES” switch
T h i s s w i t c h i s u s e d t o m a k e s e t t i n g a n d
display changes in the multi-function
meter unit. See page 5-3 for more in-
formation.
To use the “SEL” switch, move the
“SEL/RES” switch in direction (a). To
use the “RES” switch, move the
“SEL/RES” switch in direction (b).
EAU12902
Front brake leverThe front brake lever is located on the
right side of the handlebar. To apply
the front brake, pull this lever toward
the throttle grip.
1. “SEL/RES” switch
1(a)
(b)
1. Front brake lever
1
UBEDE0E0.book Page 10 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-14
5
EAU91740
Traction control systemThe traction control system (TCS)
helps maintain traction when acceler-
ating on slippery surfaces, such as un-
paved or wet roads. If sensors detect
that the rear wheel is starting to slip
(uncontrolled spinning), the traction
control system assists by regulating
engine power until traction is restored.
When traction control has engaged,
the “ ” indicator light will flash. You
may notice changes in engine re-
sponse or exhaust sound.
WARNING
EWA18860
The traction control system is not a
su bstitute for ri din g appropriately
for the con ditions. Traction control
cannot prevent loss of traction d ue
to excessive spee d when enterin g
turns, when acceleratin g har d at a
sharp lean an gle, or while b raking,
an d cannot prevent front wheel slip-
pin g. As with any vehicle, approach
surfaces that may be slippery with
caution an d avoi d especially slip-
pery surfaces.
Settin g the traction control system
When the vehicle is turned on, traction
control is automatically turned on.
To turn the traction control system off,
use the “SEL” switch to change the
multi-function display to the traction
control system display. Then push the
“RES” switch for three seconds. The
display will show “TCS OFF”, and
the “ ” indicator light will come on.
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 8-22.) Usin g different size d
tires will prevent the traction control
system from controllin g tire rotation
accurately.
1. Traction control system display
2. Traction control system indicator light “ ”
2
1
1. Traction control system display
2. Traction control system indicator light Ž
2
1
UBEDE0E0.book Page 14 Thursday, October 1, 2020 1:04 PM

Instrument and control functions
5-15
5 Resetting
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.
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, reset it by riding under
normal conditions.TIPIf the Ž indicator light remains on
after resetting, the vehicle may still be
ridden; however, have a Yamaha deal-
er check the vehicle as soon as possi-
ble.
EAU89040
Fuel tank capTo access the fuel tank, open the fuel
tank cap lid. (See page 3-9.)
To remove the fuel tank cap, turn the
fuel tank cap counterclockwise until
the release mark “ ” aligns with “ ”,
and then pull the cap off. To install the fuel tank cap, insert the
fuel tank cap onto the tank opening
and turn it clockwise until the install
mark“” aligns with“”.1. Fuel tank cap lid
1
1. Fuel tank cap
2. Release mark Ž
1. Install mark Ž
1
2
1
UBEDE0E0.book Page 15 Thursday, October 1, 2020 1:04 PM