
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 ....................................... 3-4
Replacing the smart key battery..... 3-6
Main switch .................................... 3-7
Stan din g assist ................................. 4-1
Standing assist ............................... 4-1
Instrument an d control functions ... 5-1
Indicator lights and warning
lights............................................ 5-1
Multi-function meter unit ................ 5-3
Handlebar switches ........................ 5-9
Front brake lever .......................... 5-10
Brake pedal .................................. 5-11
Rear brake lever ........................... 5-11
Parking brake lever ....................... 5-12
ABS .............................................. 5-13 Traction control system ................ 5-14
Fuel tank cap ................................ 5-15
Fuel ............................................... 5-16
Fuel tank overflow hose ................ 5-18
Catalytic converter ........................ 5-18
Storage compartment ................... 5-18
Adjusting the shock absorber
assemblies ................................. 5-20
Auxiliary DC jack ........................... 5-20
Sidestand ...................................... 5-21
Ignition circuit cut-off system ....... 5-22
For your safety – pre-operation
checks ............................................... 6-1
Operation an d important ri din g
points ................................................. 7-1
Engine break-in ............................... 7-1
Starting the engine .......................... 7-2
Starting off ...................................... 7-3
Acceleration and deceleration ........ 7-3
Braking ............................................ 7-3
Tips for reducing fuel consumption ................................ 7-4
Parking ............................................ 7-4
Perio dic maintenance an d
a d justment ........................................ 8-1
Tool kit ............................................ 8-2
Periodic maintenance charts .......... 8-3 Periodic maintenance chart for the
emission control system ............. 8-3
General maintenance and lubrication chart .......................... 8-4
Removing and installing the
panel............................................ 8-9
Checking the spark plug............... 8-10
Canister ........................................ 8-11
Engine oil and oil filter element..... 8-12
Why Yamalube.............................. 8-14
Final transmission oil .................... 8-14
Coolant ......................................... 8-15
Air filter and V-belt case air filter elements .................................... 8-17
Checking the throttle grip free play ............................................ 8-21
Valve clearance............................. 8-21
Tires .............................................. 8-22
Cast wheels .................................. 8-23
Checking the front brake lever
free play..................................... 8-24
Checking the rear brake lever free play..................................... 8-24
Checking the parking brake ......... 8-25
Checking the front and rear brake pads ................................ 8-25
Checking the brake fluid level ...... 8-26
Changing the brake fluid .............. 8-27
Checking the V-belt ...................... 8-27
Checking and lubricating the cables ........................................ 8-28UBEDE0E0.book Page 1 Thursday, October 1, 2020 1:04 PM

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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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.
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Instrument and control functions
5-13
5
EAU84570
ABSThe anti-lock brake system (ABS) acts
on the front and rear brakes indepen-
dently.
WARNING
EWA16051
Always keep a sufficient d istance
from the vehicle ahead to match the
ri din g speed even with ABS.
The ABS performs best with
lon g b rakin g d istances.
On certain surfaces, such as
rou gh or g ravel roa ds, the b rak-
in g d istance may b e longer with
the ABS than without.How to operate the brakes
Operate the brake lever and brake
pedal the same as you would conven-
tional brakes. If wheel slip is detected
while braking, ABS will activate and a
pulsating sensation may be felt at the
brake lever or brake pedal. Continue to
apply the brakes and let the ABS work.
Do not pump the brakes as this will re-
duce braking effectiveness.
The ABS performs a self-check
when you first start off. During this
time a clicking noise from the hy-
draulic unit may be audible, and if
the brake lever or brake pedal is
applied a vibration can be felt, but
this is not a malfunction.
The brake system will revert to a
conventional brake system in case
of ABS malfunction.
NOTICE
ECA20100
Be careful not to damag e the wheel
sensor or wheel sensor rotor; other-
wise, improper performance of the
ABS will result.1. Front wheel sensor rotor
2. Front wheel sensor
1
2
1. Rear wheel sensor
2. Rear wheel sensor rotor
1 2 2 2
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Instrument and control functions
5-20
5
EAU14895
A djustin g the shock a bsor ber
assem blies
WARNING
EWA10211
Always a djust both shock a bsor ber
assem blies equally, otherwise poor
han dlin g an d loss of sta bility may re-
sult.Each shock absorber assembly is
equipped with a spring preload adjust-
ing ring.NOTICE
ECA10102
To avoi d d amag ing the mechanism,
d o not attempt to turn b eyond the
maximum or minimum settin gs.Adjust the spring preload as follows.
Turn the adjusting ring in direction (a)
to increase the spring preload.
Turn the adjusting ring in direction (b)
to decrease the spring preload.
Align the appropriate notch in the
adjusting ring with the position in-
dicator on the shock absorber.
Use the spring preload adjusting
tool included in the tool kit to
make this adjustment.
EAU49454
Auxiliary DC jackA 12-V accessory connected to the
auxiliary DC jack can be used when the
main switch is on.NOTICE
ECA15432
The accessory connecte d to the
auxiliary DC jack shoul d not b e used
with the en gine turne d off, an d the
loa d must never excee d 12 W (1 A),
otherwise the fuse may blow or the
b attery may dischar ge.To use the auxiliary DC jack
1. Turn the main switch off.
2. Remove the auxiliary DC jack cap.
3. Turn the accessory off.
1. Spring preload adjusting ring
2. Special wrench
3. Position indicator
Sprin g preloa d settin g:
Minimum (soft):
1
Standard: 2
Maximum (hard): 51 2345
1
2
3(a) (a)
(b) (b)
(a) (b)
1. Auxiliary DC jack
1
UBEDE0E0.book Page 20 Thursday, October 1, 2020 1:04 PM

Operation and important rid ing points
7-2
7
EAU91750
Startin g the eng ineThe ignition circuit cut-off system will
allow engine start when the sidestand
is up.
To start the engine1. Turn the main switch on and set
the engine stop switch to the run
position.
2. Confirm the indicator and warning light(s) come on for a few sec-
onds, and then go off. (See page
5-1.)TIPDo not start the engine if the mal-
function indicator light remains on.
The ABS warning light should
come on and stay on until the ve-
hicle reaches a speed of 10 km/h
(6 mi/h).NOTICE
ECA24110
If a warnin g or in dicator li ght does
not work as d escribed a bove, have a
Yamaha dealer check the vehicle.3. Close the throttle completely. 4. While applying the front or rear
brake, push the start switch.
5. Release the start switch when the engine starts, or after 5 seconds.
Wait 10 seconds before pressing
the switch again to allow battery
voltage to restore.
NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAUM4280
TIPThis model is equipped with a lean an-
gle sensor to stop the engine in case of
a turnover. In this case, the malfunction
Indicator light will come on but this is
not a malfunction. Turn the vehicle
power off and then back on again to
cancel the Indicator light. Failing to do
so will prevent the engine from starting
even though the engine will crank
when pushing the start switch.
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Periodic maintenance an d a djustment
8-26
8
EAU40262
Checkin g the brake flui d levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
Front brake Rear
brake
WARNING
EWA16011
Improper maintenance can result in
loss of b raking a bility. O bserve
these precautions: Insufficient brake flui d may al-
low air to enter the brake sys-
tem, re ducin g brakin g
performance.
Clean the filler cap before re-
movin g. Use only DOT 4 b rake
flui d from a seale d container.
Use only the specified b rake flu-
i d ; otherwise, the ru bber seals
may deteriorate, causin g leak-
a g e.
Refill with the same type of
brake flui d. A ddin g a brake flui d
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water or dust
d oes not enter the b rake fluid
reservoir when refillin g. Water
will si gnificantly lower the b oil-
in g point of the flui d an d may re-
sult in vapor lock, an d d ir t may
clo g
the ABS hy draulic unit
valves.
NOTICE
ECA17641
Brake flui d may damag e painted
surfaces or plastic parts. Always
clean up spille d flui d imme diately.As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake
system leakage; therefore, be sure to
check the brake pads for wear and the
brake system for leakage. If the brake
1. Minimum level mark
1 1
1. Minimum level markSpecifie d b rake flui d:
DOT 4
1 1
UBEDE0E0.book Page 26 Thursday, October 1, 2020 1:04 PM
![YAMAHA TRICITY 300 2021 Owners Manual Periodic maintenance an d a djustment
8-33
8
nect the positive lea
d before
connectin g the ne gative lea d.
[ECA16842]
4. After installation, make sure that
the battery leads are properly con-
necte YAMAHA TRICITY 300 2021 Owners Manual Periodic maintenance an d a djustment
8-33
8
nect the positive lea
d before
connectin g the ne gative lea d.
[ECA16842]
4. After installation, make sure that
the battery leads are properly con-
necte](/manual-img/51/51919/w960_51919-90.png)
Periodic maintenance an d a djustment
8-33
8
nect the positive lea
d before
connectin g the ne gative lea d.
[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 dischar ged battery can
cause permanent battery damag e.
EAU89081
Replacin g the fusesThe main fuse and the fuse boxes,
which contain the fuses for the individ-
ual circuits, are located behind panel A.
(See page 8-9.)TIPTo access the main fuse, remove the
starter relay cover as shown.1. Starter relay cover
2. Spare main fuse
3. Main fuse
2 2
3 2
3
1
1. Backup fuse
2. Radiator fan motor fuse
3. Ignition fuse
4. ABS control unit fuse
5. Signaling system fuse
6. Grip warmer fuse
7. Spare fuse
8. Headlight fuse
9. ABS motor fuse
10.ABS solenoid fuse
11.Hazard fuse
12.Auxiliary DC jack fuse
13.Answer back fuse
14.Standing assist battery fuse
15.Standing assist fuse
14157
910111213
7
123465
7
8
UBEDE0E0.book Page 33 Thursday, October 1, 2020 1:04 PM