2021 YAMAHA NMAX 155 oil

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
Stop an d Start System ..................... 4-1
Stop and Start System ................... 4-1
Stop and Start System operation ... 4-1
Special features .............................. 5-1
CCU (Communication Control Unit) ................................ 5-1
Instrument an d control functions ... 6-1
Indicator lights and warning lights............................................ 6-1
Multi-function meter unit ................ 6-3
Handlebar switches ...................... 6-10 Front brake lever ........................... 6-11
Rear brake lever ............................ 6-11
ABS ............................................... 6-12
Traction control system ................ 6-13
Fuel tank cap ................................ 6-14
Fuel ............................................... 6-15
Fuel tank overflow hose ................ 6-17
Catalytic converter ........................ 6-17
Seat ............................................... 6-17
Helmet holders .............................. 6-18
Storage compartments ................. 6-19
Adjusting the shock absorber
assemblies ................................. 6-20
Power outlet ................................. 6-21
Sidestand ...................................... 6-22
Ignition circuit cut-off system ....... 6-22
For your safety – pre-operation
checks ............................................... 7-1
Operation an d important ri din g
points ................................................. 8-1
Engine break-in ............................... 8-1
Starting the engine .......................... 8-2
Starting off ...................................... 8-2
Acceleration and deceleration ........ 8-3
Braking ............................................ 8-3
Tips for reducing fuel consumption ................................ 8-3
Parking ........................................... 8-4 Perio
dic maintenance an d
a d justment ........................................ 9-1
Tool kit ............................................ 9-1
Periodic maintenance chart for the emission control system ....... 9-2
General maintenance and lubrication chart .......................... 9-3
Removing and installing panels ...... 9-7
Checking the spark plug................. 9-9
Canister ........................................ 9-11
Engine oil and oil strainer ............. 9-11
Why Yamalube.............................. 9-13
Final transmission oil .................... 9-13
Coolant ......................................... 9-15
Air filter and V-belt case
air filter elements ....................... 9-16
Checking the throttle grip
free play..................................... 9-19
Valve clearance............................. 9-19
Tires .............................................. 9-19
Cast wheels .................................. 9-21
Checking the front and rear brake lever free play .................. 9-21
Checking the front and rear brake pads ................................ 9-22
Checking the brake fluid level ...... 9-23
Changing the brake fluid .............. 9-24
Checking the V-belt ...................... 9-24
Checking and lubricating the
cables ........................................ 9-25UBBDE0E0.book Page 1 Wednesday, June 2, 2021 2:57 PM

Description
2-1
2
EAU10411
Left view
1,2 3 498756
1. Storage compartment A (page 6-19)
2. Power outlet (page 6-21)
3. Fuel tank cap (page 6-14)
4. Tool kit (page 9-1)
5. Rear storage compartment (page 6-19)
6. Air filter element (page 9-16)
7. Final transmission oil filler cap (page 9-13)
8. Final transmission oil drain bolt (page 9-13)
9. V-belt case air filter element (page 9-16)UBBDE0E0.book Page 1 Wednesday, June 2, 2021 2:57 PM

Description
2-2
2
EAU10421
Right view
1
10 9 8 7 623 4 5
1. Tail/brake light
2. Battery (page 9-28)
3. Storage compartment B (page 6-19)
4. Fuse box (page 9-29)
5. Headlight (page 9-31)
6. Coolant reservoir (page 9-15)
7. Spark plug (page 9-9)
8. Engine oil drain bolt A (page 9-11)
9. Engine oil drain bolt B (page 9-11)
10.Engine oil filler cap (page 9-11)
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Smart key system
3-4
3
Keep the smart key away from
stron g ma gnetic fiel ds an d
ma gnetic o bjects such as key
hol ders, TVs, an d computers.
 Keep the smart key away from
electric me dical equipment.
 Do not allow oils, polishin g
a g ents, fuel, or any stron g
chemicals to come in contact
with the smart key. The smart
key body may become discol-
ore d or cracked .
TIPThe smart key battery life is ap-
proximately two years, but this
may vary according to operating
conditions.
 Replace the smart key battery
when the smart key system indi-
cator light flashes for 20 seconds
when the vehicle is turned on, or
when the smart key indicator light
does not come on when the smart
key button is pushed. (See page
3-6.) After changing the smart key
battery, if the smart key system still does not operate, check the
vehicle battery and then have a
Yamaha dealer check the vehicle.
 If the smart key continually re-
ceives radio waves, the smart key
battery will discharge quickly. (For
example, when placed in the vicin-
ity of electrical products such as
televisions, radios, or computers.)
 You can register up to six smart
keys for the same vehicle. See a
Yamaha dealer regarding spare
smart keys.
 If a smart key is lost, contact a
Yamaha dealer immediately to
prevent the vehicle from being
stolen, etc.
EAU76474
Smart key
WARNING
EWA17952
The smart key shoul d b e carrie d
with you. Do not store it on the
vehicle.
 When the smart key is within
operatin g ran ge, exercise due
care because other people not
carryin g the smart key can start
the en gine an d operate the vehi-
cle.1. Smart key indicator light
2. Smart key button
1
2
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Instrument and control functions
6-6
6 2. While pushing the “MENU”
switch, turn the vehicle on.
3. Continue pushing the “MENU” switch. The display unit setting
screen will come on (after 5 sec-
onds), and after that (an additional
10 seconds) all segments other
than the VVA indicator will start
flashing. Now release the “MENU”
switch.
4. Push the “MENU” switch once to change the on or off setting.
5. Push the “MENU” switch for 1 second to confirm the setting.
TIPTurning the VVA indicator off does not
turn off the variable valve actuation
system.
EAUN2800
Multi-function display
The multi-function display is equipped
with the following:  an odometer (ODO)
 two tripmeters (TRIP 1 and TRIP 2)
 a fuel reserve tripmeter (TRIP F)
 an oil change tripmeter (OIL TRIP)
 an oil change indicator
 a V-belt replacement tripmeter (V-
BELT TRIP)
 a V-belt replacement indicator
 an instantaneous fuel consump-
tion display (F/ECO)
 an average fuel consumption dis-
play (AVE F/ECO)
 a battery voltage display (BATT) 
a traction control system display
(TCS)
Push the “MENU” switch to change
the display in the following order:
ODO and F/ECO  TRIP 1 and AVE
F/ECO  TRIP 2 and AVE F/ECO 
TRIP F  BATT  TCS  OIL TRIP 
V-BELT TRIP  ODO and F/ECO
TIP The fuel reserve tripmeter appears
only when you are low on fuel.
 The oil change tripmeter and V-
belt replacement tripmeter are not
displayed while the vehicle is
moving.
 There is an average fuel consump-
tion display for each tripmeter
(TRIP 1 and TRIP 2). When a trip-
meter is reset, the average fuel
consumption display for that trip-
meter will also be reset.
1. Multi-function display
1
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Instrument and control functions
6-8
6
EAUN3060
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
5000 km (3100 mi), and then every
6000 km (3700 mi) thereafter.
To reset the oil change tripmeter and
oil change indicator, select the oil
change tripmeter, and then push the
“MENU” switch until “OIL” and the trip-
meter start flashing. While “OIL” and
the tripmeter are flashing, push the
“MENU” switch until the tripmeter 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.
EAUN3070
V- belt replacement tripmeter
This tripmeter shows the distance trav-
eled since the V-belt was last replaced.
The V-belt replacement indicator “V-
BELT” will flash every 18000 km
(11200 mi) to indicate that the V-belt
should be replaced. To reset both the tripmeter and the in-
dicator, select the V-belt replacement
tripmeter, and then push the “MENU”
switch until “V-BELT” and the tripme-
ter start flashing. While “V-BELT” and
the tripmeter are flashing, push the
“MENU” switch until the tripmeter is
reset.
TIPWhen the V-belt is replaced, the trip-
meter and indicator must be reset.
Otherwise, the V-belt replacement in-
dicator will not come on at the correct
time.
EAU86940
Instantaneous fuel consumption
d
isplay
1. Oil change indicator “OIL”
2. Oil change tripmeter
2
1
1.
2. V-belt replacement tripmeter
2 1
1. Instantaneous fuel consumption display
1
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For your safety – pre-operation checks
7-1
7
EAU1559B
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment d amage.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank overflow hose for obstructions, cracks or damage, and check
hose connection. 6-15, 6-17
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 9-11
Final transmission oil • Check vehicle for oil leakage. 9-13
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage. 9-15
Front brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 9-21, 9-22, 9-23
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Operation and important rid ing points
8-1
8
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.
EAUM2012
0–1000 km (0–600 mi)
Avoid prolonged operation above 1/3
throttle. NOTICE: After 1000 km (600
mi) of operation, be sure to replace
the en gine oil an d final transmission
oil.
[ECA11662]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 1/2
throttle. 1600 km (1000 mi) an
d b eyon d
The vehicle can now be operated nor-
mally.
NOTICE
ECA10271
If any en gine trou ble shoul d occur
d urin g the en gine break-in perio d,
imme diately have a Yamaha dealer
check the vehicle.
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