2021 YAMAHA NMAX 155 fuel consumption

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

Stop and Start System
4-1
4
EAU76825
Stop an d Start SystemThe Stop and Start System stops the
engine automatically when the vehicle
is stopped in order to prevent noise,
control exhaust emissions, and reduce
fuel consumption.
When the rider turns the throttle grip
slightly, the engine restarts automati-
cally and the vehicle starts off.NOTICE
ECA23961
When parkin g the vehicle or leavin g
the vehicle unatten ded , be sure to
turn the main switch off. If the Stop
an d Start System is left turne d on,
the battery could become dis- char
ged an d it may not be possi ble
to restart the en gine due to insuffi-
cient battery volta ge.
TIP Although the engine normally
stops at the same time as the ve-
hicle, there may be a delay when
operating the vehicle under 10
km/h, such as in heavy traffic.
 If you think the battery voltage is
low because the engine cannot be
started using the starter switch or
for some other reason, do not turn
on the Stop and Start System.
 Have a Yamaha dealer check the
battery at the intervals specified in
the periodic maintenance chart.
EAU76671
Stop an d Start System opera-
tion
EAU76687
Activatin g the Stop an d Start Sys-
tem 1. Turn the main switch on.
2. Set the Stop and Start System switch to “ ”.
1. Stop and Start System indicator light “ ”
1
ON
A
AAA
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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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Instrument and control functions
6-9
6
This display shows fuel consumption
under current riding conditions. It can
be set to either “km/L” or “L/100 km”,
or “MPG” when using miles.
 “km/L”: the distance that can be
traveled on 1.0 L of fuel.
 “L/100 km”: the amount of fuel
necessary to travel 100 km.
 “MPG”: the distance that can be
traveled on 1.0 Imp.gal of fuel.
TIPWhen traveling under 10 km/h (6 mi/h),

EAU86950
Avera ge fuel consumption display This display shows the average fuel
consumption since it was last reset.
The average fuel consumption display
can be set to either “km/L” or “L/100
km”, or “MPG” when using miles.
 “km/L”: the average distance that
can be traveled on 1.0 L of fuel.
 “L/100 km”: the average amount
of fuel necessary to travel 100 km.
 “MPG”: the average distance that
can be traveled on 1.0 Imp.gal of
fuel.
TIPTo reset the display, push the
“MENU” switch until it resets.
 After resetting, “_ _._” is shown
until the vehicle has traveled some
distance.
EAU86960
Battery volta ge display
This display shows the current charge
state of the battery.  Over 12.8 V = Full charge.
 Under 12.7 V = Charging is re-
quired.TIPIf the battery voltage is less than 9.0 V,

1. Average fuel consumption display
1
1. Battery voltage meter
1
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Operation and important rid ing points
8-3
8
EAU16782
Acceleration an d d ecelerationThe speed can be adjusted by opening
and closing the throttle. To increase
the speed, turn the throttle grip in di-
rection (a). To reduce the speed, turn
the throttle grip in direction (b).
EAU60650
Brakin g
WARNING
EWA17790
Avoi d b rakin g har d or su ddenly
(especially when leanin g over to
one si de), otherwise the vehicle
may skid or overturn.
 Railroa d crossin gs, streetcar
rails, iron plates on road con-
struction sites, an d manhole
covers become extremely slip-
pery when wet. Therefore, slow
d own when approachin g such
areas an d cross them with cau-
tion.
 Keep in min d that b raking on a
wet road is much more difficult.
 Ride slowly d own a hill, as brak-
in g d ownhill can be very d iffi-
cult.1. Close the throttle completely.
2. Apply both front and rear brakes simultaneously while gradually in-
creasing the pressure.
EAU16821
Tips for re ducin g fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
 Avoid high engine speeds during
acceleration.
 Avoid high engine speeds with no
load on the engine.
 Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
(b)
(a)
ZAUM0199
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13-1
13
IndexAABS ....................................................... 6-12
ABS warning light ................................... 6-2
Acceleration and deceleration ................ 8-3
Activating the Stop and Start System .... 4-1
Air filter and V-belt case air filter
elements ............................................. 9-16
App Connect icon ................................... 6-4BBattery .................................................. 9-28
Brake fluid, changing ............................ 9-24
Brake fluid level, checking .................... 9-23
Brake lever, front .................................. 6-11
Brake lever, rear.................................... 6-11
Brake levers, lubricating ....................... 9-25
Braking.................................................... 8-3CCables, checking and lubricating ......... 9-25
Canister................................................. 9-11
Care ...................................................... 10-1
Catalytic converter ................................ 6-17
CCU (Communication Control Unit) ....... 5-1
Centerstand and sidestand, checking and lubricating .................... 9-26
Clock....................................................... 6-5
Coolant ................................................. 9-15
Coolant temperature meter .................... 6-5DData recording, vehicle ......................... 12-2
Diagnostic connector............................ 12-2
Dimmer switch ...................................... 6-10
Display units, switching .......................... 6-4EEmergency mode.................................. 9-38 Engine break-in ...................................... 8-1
Engine oil and oil strainer ..................... 9-11
Engine overheating ............................... 9-37
Engine serial number ............................ 12-1
FFinal transmission oil ............................ 9-13
Front and rear brake lever free play,
checking............................................. 9-21
Front and rear brake pads, checking ... 9-22
Front fork, checking ............................. 9-27
Fuel ....................................................... 6-15
Fuel consumption, tips for reducing ...... 8-3
Fuel meter .............................................. 6-4
Fuel tank cap ........................................ 6-14
Fuel tank overflow hose ....................... 6-17
Fuses, replacing ................................... 9-29HHandlebar switches .............................. 6-10
Hazard switch....................................... 6-10
Helmet holders ..................................... 6-18
High beam indicator light ....................... 6-1
Horn switch .......................................... 6-10IIdentification numbers .......................... 12-1
Ignition circuit cut-off system ............... 6-22
Incoming call indicator light ................... 6-3
Incoming notification indicator light ....... 6-3
Indicator lights and warning lights ......... 6-1KKey, handling of smart and mechanical keys................................... 3-3MMain switch ............................................ 3-7
Maintenance and lubrication, periodic ... 9-3 Maintenance,
emission control system .......................9-2
Malfunction indicator light (MIL)..............6-1
Matte color, caution ..............................10-1
Menu switch..........................................6-11
Model label ...........................................12-1
Multi-function display .............................6-6
Multi-function meter unit .........................6-3
OOperating range of the smart key system ..................................................3-2PPanels, removing and installing ..............9-7
Parking ....................................................8-4
Part locations ..........................................2-1
Power outlet ..........................................6-21
Precautions when using the Stop and Start System .........................4-3SSafe-riding points....................................1-5
Safety information ...................................1-1
Seat .......................................................6-17
Shock absorber assemblies,
adjusting .............................................6-20
Sidestand ..............................................6-22
Smart key ................................................3-4
Smart key battery, replacing ...................3-6
Smart key system ...................................3-1
Smart key system indicator light.............6-2
Smart key system, troubleshooting ......9-33
Smartphone battery level meter..............6-4
Spark plug, checking ..............................9-9
Special features ......................................5-1
Specifications .......................................11-1
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