![]()
No images available
Tap to enlarge
![]()
2022 Yamaha NMAX 155 Overview
For 2022, Yamaha offers the NMAX 155 as a scooter motorcycle with 155 cc on tap. The 2022 Yamaha NMAX 155 is built around a Single cylinder, four-stroke engine running Single Overhead Cams (SOHC) valve actuation, a compression ratio of 11.6:1. Internally, bore and stroke are 58 x 58.7 mm. Out on the road, the NMAX 155 delivers 14.4 Nm @ 6000 Revolutions of torque. In everyday use, the 2022 NMAX 155 tips the scales at 127 kg, carries a 7.10-litre fuel tank, offers a seat height of 765 mm and spans a 1350 mm wheelbase. That's roughly 70.7 kg lighter than the average scooter motorcycle in our database. Every technical detail, from suspension travel to tyre sizes, is covered in the full 2022 Yamaha NMAX 155 spec sheet below.
2022 NMAX 155 - Pros & Cons
Strengths
-
🔧
Fuel injection: No choke, no jetting, no altitude compensation to think about - fuel injection just works across a wider range of conditions than carburetion.
-
⚙️
Low-maintenance final drive: Belt (final drive) final drive is about as close to maintenance-free as motorcycle drivetrains get.
Considerations
-
⛽
Modest fuel capacity: A 7.10-litre tank keeps things light but means budgeting for more frequent fuel stops on any longer ride.
Wear Points & Servicing Notes
Fuelling & injector care
Fuelling on the NMAX 155 comes from fuel injection. Cold starts and throttle response stay consistent across altitude and temperature, the main practical edge over a carbureted equivalent.
Valve clearance checks
Valve clearances on Single Overhead Cams (SOHC)-equipped engines like the NMAX 155's drift slowly with mileage rather than failing suddenly - sticking to the service interval keeps it a non-issue.
Brake disc and pad wear
Single disc. Hydraulic. ABS. up front provides the primary stopping power; inspect disc thickness and pad wear at each tyre change to catch scoring before it becomes a rotor replacement.
Suspension condition on used examples
Suspension duties are handled by Telescopic fork up front and Unit Swing, twin shocks at the rear. Weeping fork seals aren't a dealbreaker on a used bike, but they're a fair basis for negotiating price.
Final drive maintenance
Belt final drive keeps day-to-day maintenance minimal on the NMAX 155 - just periodic tension and wear checks rather than the regular cleaning a chain demands.
Frame & chassis check
The Underbone chassis holds up well with normal use; on a used bike it's still worth checking the head-stock and swingarm pivot area for impact damage or corrosion.
Low-speed handling
The NMAX 155's 127 kg kerb weight makes low-speed control noticeably less effort than on a heavier machine.
NMAX 155 - Buying & Maintenance Guide
What to check before buying
A pre-purchase check on the 2022 Yamaha NMAX 155 should cover the same ground every time: service history, chain and sprocket condition, and any oil seepage around the casings. Start it from cold if you can - a well-kept NMAX 155 settles to a smooth idle within seconds.
Oil and filter changes
Oil changes are the cheapest insurance you can buy for a NMAX 155's engine - keep to the manufacturer's interval rather than stretching it. The sump holds 1 litres, so budget for that volume of quality motorcycle-specific engine oil. Use the viscosity grade the manual specifies, not whatever's on sale.
Fuel system care
Injector systems like the NMAX 155's hold up well with basic care - decent fuel, an occasional cleaner additive, and draining old fuel before any layup longer than three months.
Valve clearance service
There's no reliable seat-of-the-pants way to tell if a NMAX 155's valve clearances are in spec - a light top-end tick is the only real warning sign, and by then some wear has already happened. Service records are the only proof.
2022 Yamaha NMAX 155 - Frequently Asked Questions
What engine does the 2022 Yamaha NMAX 155 have?
The 2022 Yamaha NMAX 155 uses a Single cylinder, four-stroke engine with 155 cc of displacement.
How much does the 2022 Yamaha NMAX 155 weigh?
The 2022 Yamaha NMAX 155 weighs 127 kg. This is the manufacturer's wet figure.
How much power does the 2022 Yamaha NMAX 155 make?
The 2022 Yamaha NMAX 155 produces 14.4 Nm @ 6000 Revolutions of torque.
What is the fuel tank capacity of the 2022 Yamaha NMAX 155?
The 2022 Yamaha NMAX 155 has a 7.10-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 118-141 km between stops.
Is the 2022 Yamaha NMAX 155 suitable for shorter riders?
The 2022 Yamaha NMAX 155 has a seat height of 765 mm. This is a moderate seat height that suits a wide range of rider heights.
What brakes does the 2022 Yamaha NMAX 155 have?
The 2022 Yamaha NMAX 155 uses Single disc. Hydraulic. ABS. at the front and Single disc. ABS. at the rear.
What tyre sizes does the 2022 Yamaha NMAX 155 use?
The front tyre size on the 2022 Yamaha NMAX 155 is 110/70-13.
How much oil does the 2022 Yamaha NMAX 155 take?
The 2022 Yamaha NMAX 155 takes 1 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.
Yamaha NMAX 155 Spec Evolution
The Yamaha NMAX 155 was produced across 3 model years (2021-2023). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2021 |
2022 |
2023 |
| Fuel Capacity |
6.60 litres / 1.74 US gallons |
7.10 litres / 1.88 US gallons |
7.10 litres / 1.88 US gallons |
| Frame Type |
Backbone |
Underbone |
Underbone |
| Suspension - Rear |
Unit Swing, monoshock |
Unit Swing, twin shocks |
Unit Swing, twin shocks |
| Colours |
Black, Red, White |
Matte Grey, Icon Blue |
Milky White, Dark Petrol |
| Compression Ratio |
11.2:1 |
11.6:1 |
11.6:1 |
| Wheel Travel - Front |
110 mm / 4.3 in. |
100 mm / 3.9 in. |
100 mm / 3.9 in. |
| Wheel Travel - Rear |
84 mm / 3.3 in. |
85 mm / 3.3 in. |
85 mm / 3.3 in. |
| Ignition |
Transistorised |
TCI |
TCI |
Key Specifications
Engine
Single cylinder, four-stroke
Power
Not published by manufacturer
Torque
14.4 Nm (1.5 kgf-m or 10.6 ft.lbs) @ 6000 Revolutions
Top Speed
Not published by manufacturer
Weight
127.0 kg / 280.0 lbs
Fuel Capacity
7.10 litres / 1.88 US gallons
Advertisement
Full 2022 Yamaha NMAX 155 Specifications
Colours
Matte Grey, Icon Blue
Storage
Underseat storage
Ground Clearance (mm)
135 mm
Ground Clearance (in.)
5.3 inches
Seat Height
765 mm / 30.1 in.
Wheelbase
1350 mm / 53.1 in.
Height
1115 mm / 43.9 in.
Length
1955 mm / 77.0 in.
Width
740 mm / 29.1 in.
Oil Capacity (Quarts)
1.06 US quarts
Oil Capacity (l)
1.00 litres
Fuel Capacity
7.10 litres / 1.88 US gallons
Wet Weight
127.0 kg / 280.0 lbs
Fuel Control
Single Overhead Cams (SOHC)
Engine Type
Single cylinder, four-stroke
Displacement (ci)
9.46 cubic inches
Displacement (cc)
155.0 cc
Bore x Stroke (mm)
58.0 x 58.7 mm
Bore x Stroke (in,)
2.3 x 2.3 inches
Fuel System
Injection
Compression Ratio
11.6:1
Emissions
Euro 5
Engine Lubrication
Wet sump
Ignition
TCI
Starter
Electric
Valve System
4
Clutch
Dry centrifugal
Final Drive
Belt (final drive)
Gearbox
Automatic
Primary Drive
V-Belt Automatic
Frame Type
Underbone
Suspension - Front
Telescopic fork
Suspension - Rear
Unit Swing, twin shocks
Rake
26.0°
Trail
92 mm / 3.6 in.
Wheel Travel - Front
100 mm / 3.9 in.
Wheel Travel - Rear
85 mm / 3.3 in.
Lighting system
LED headlight
Brakes - Front
Single disc. Hydraulic. ABS.
Brakes - Rear
Single disc. ABS.
Tyres - Front
110/70-13
Specifications are compiled from manufacturer documentation and cross-referenced
technical sources, and corrected on an ongoing basis.
Spot an error? Let us know.
Advertisement