2021 YAMAHA NMAX 155 fuel type

Instrument and control functions
6-16
6 ately. If
gasoline spills on your skin,
wash with soap an d water. If gaso-
line spills on your clothin g, chan ge
your clothes.
EAU86072
Your Yamaha engine was designed to
use unleaded gasoline with a research
octane number of 90 or higher. If en-
gine knocking or pinging occurs, use a
gasoline of a different brand or higher
octane rating.
TIP This mark identifies the recom-
mended fuel for this vehicle as
specified by European regulation
(EN228).
 Confirm the gasoline pump nozzle
has the same fuel identification
mark.Gasohol
There are two types of gasohol: gaso-
hol containing ethanol and that con-
taining methanol. Gasohol containing
ethanol can be used if the ethanol con-
tent does not exceed 10% (E10). Gas-
ohol containing methanol is not
recommended by Yamaha because it
can cause damage to the fuel system
or vehicle performance problems.
NOTICE
ECA11401
Use only unlea ded g asoline. The use
of lea ded g asoline will cause severe
d amag e to internal en gine parts,
such as the valves an d piston rin gs,
as well as to the exhaust system.
Recommen ded fuel:
Unleaded gasoline (E10 acceptable)
Octane num ber (RON):
90
Fuel tank capacity: 7.1 L (1.9 US gal, 1.6 Imp.gal)
Fuel tank reserve:
1.7 L (0.45 US gal, 0.37 Imp.gal)
E5
E10
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Periodic maintenance an d a djustment
9-11
9
EAU36113
CanisterThis model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the
following:
 Check each hose connection.
 Check each hose and canister for
cracks or damage. Replace if
damaged.
 Make sure that the canister
breather is not blocked, and if
necessary, clean it.
EAU66995
Engine oil an d oil strainerThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil strainer
cleaned at the intervals specified in the
periodic maintenance and lubrication
chart.
To check the en gine oil level
1. Place the vehicle on the center- stand. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, remove the engine oil filler
cap, wipe the engine oil dipstick
clean, insert it back into the oil fill-
er hole (without screwing it in), and
then remove it again to check the
oil level. WARNING! The muffler
an d muffler protector become
very hot d uring use. To avoi d
possi ble burns, let the muffler
an d protector cool before re-
movin g the oil filler cap.
[EWA17810]
TIPThe engine oil should be between the
tip of the dipstick and the maximum
level mark.4. If the engine oil is not between the
tip of the dipstick and the maxi-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
5. Insert the dipstick into the oil filler hole, and then tighten the oil filler
cap.
1. Canister
2. Canister breather
2
1
1. Oil filler hole
2. O-ring
3. Engine oil dipstick
4. Maximum level mark
5. Tip of the engine oil dipstick
3245
1
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Specifications
11-1
11
Dimensions:Overall length:1935 mm (76.2 in)
Overall width:
740 mm (29.1 in)
Overall height: 1160 mm (45.7 in)
Seat height: 765 mm (30.1 in)
Wheelbase:
1340 mm (52.8 in)
Ground clearance: 125 mm (4.92 in)
Minimum turning radius: 2.0 m (6.56 ft)Wei ght:Curb weight:
131 kg (289 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: SOHC
Number of cylinders:
Single cylinder
Displacement: 155 cm3
Bore  stroke:
58.0  58.7 mm (2.28  2.31 in)
Starting system:
Electric starter
Engine oil:Recommended brand:
SAE viscosity grades:
10W-40
Recommended engine oil grade: API service SG type or higher, JASO
standard MA or MB
Engine oil quantity: Oil change:0.90 L (0.95 US qt, 0.79 Imp.qt)Final transmission oil:Type:
Motor oil SAE 10W-40 type SG or higher
Quantity: 0.10 L (0.11 US qt, 0.09 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.13 L (0.14 US qt, 0.11 Imp.qt)
Radiator (including all routes):
0.46 L (0.49 US qt, 0.40 Imp.qt)Fuel:Recommended fuel:Unleaded gasoline (E10 acceptable)
Octane number (RON):
90
Fuel tank capacity: 7.1 L (1.9 US gal, 1.6 Imp.gal)
Fuel reserve amount: 1.7 L (0.45 US gal, 0.37 Imp.gal)
Fuel injection:Throttle body:ID mark:B2T1Front tire:Type:
Tubeless
Size: 110/70-13M/C 48P
Manufacturer/model: DUNLOP/SCOOT SMART LRear tire:Type: Tubeless
Size: 130/70-13M/C 63P
Manufacturer/model:
DUNLOP/SCOOT SMART LLoa din g:Maximum load:
167 kg (368 lb)
(Total weight of rider, passenger, cargo and
accessories)Front brake:Type:
Hydraulic single disc brakeRear brake:Type:
Hydraulic single disc brakeFront suspension:Type:
Telescopic fork
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