2020 Yamaha MT-03 Specifications

Name: 2020 Yamaha MT-03
Brand: Yamaha

Naked bike • Specs last verified 13 July 2026

No images available

Tap to enlarge

2020 Yamaha MT-03 Overview

The 2020 Yamaha MT-03 is a naked bike motorcycle built around 321 cc of displacement. Under the tank sits a Four stroke, parallel twin cylinder, 4 valve per cylinder engine, a compression ratio of 11.2:1. 2020 Yamaha MT-03 delivers 30.9 kW 41.4 hp @ 10750 rpm of peak power and 29.6 Nm @ 9000 rpm of torque. From a practical standpoint, the 2020 MT-03 tips the scales at 167 kg, carries a 14-litre fuel tank, offers a seat height of 779.7 mm and spans a 1379.2 mm wheelbase. That's roughly 41.5 kg lighter than the average naked bike motorcycle in our database. Scroll down for the complete 2020 Yamaha MT-03 spec sheet covering every technical detail from suspension travel to tyre sizes.

2020 MT-03 - Pros & Cons

Strengths

Strong power output: 2020 Yamaha MT-03 makes 30.9 kW 41.4 hp @ 10750 rpm with 29.6 Nm @ 9000 rpm of torque - competitive figures for its class.
Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.

Considerations

Chain final drive upkeep: Chain final drive needs regular cleaning, lubrication and tension checks to get full life out of the sprockets.

Wear Points & Servicing Notes

Cooling system servicing

The Liquid cooled system on the MT-03 needs a coolant change roughly every two years (or per the service schedule) - skipping it lets the coolant turn acidic and corrode the aluminium water passages over time.

Fuelling & injector care

Fuelling comes from fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.

Brake disc and pad wear

The Single 298mm disc, ABS front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.

Suspension condition on used examples

Up front, the MT-03 runs 37mm Non-adjustable KYB inverted forks and Linkage-assisted spring-preload adjustable KYB shock at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.

Final drive maintenance

Final drive is by chain - expect to clean and lube it every few hundred kilometres and check tension regularly; a neglected chain wears the sprockets faster than the chain itself.

Frame & chassis check

The frame is Delta box - worth a visual check for corrosion or impact damage around the head-stock and swingarm pivot on any used example, since frame damage is far costlier to fix than any service item.

MT-03 - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2020 Yamaha MT-03, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained MT-03 should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any MT-03. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.

Fuel system care

The MT-03's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.

2020 Yamaha MT-03 - Frequently Asked Questions

What engine does the 2020 Yamaha MT-03 have?

The 2020 Yamaha MT-03 uses a Four stroke, parallel twin cylinder, 4 valve per cylinder engine with 321 cc of displacement. It is liquid cooled.

How much does the 2020 Yamaha MT-03 weigh?

The 2020 Yamaha MT-03 weighs 167 kg. This is the manufacturer's wet figure.

How much power does the 2020 Yamaha MT-03 make?

The 2020 Yamaha MT-03 produces 30.9 kW 41.4 hp @ 10750 rpm of power and 29.6 Nm @ 9000 rpm of torque. These are peak figures.

What is the fuel tank capacity of the 2020 Yamaha MT-03?

The 2020 Yamaha MT-03 has a 14-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 233-280 km between stops.

Is the 2020 Yamaha MT-03 suitable for shorter riders?

The 2020 Yamaha MT-03 has a seat height of 779.7 mm. This is a moderate seat height that suits a wide range of rider heights.

What brakes does the 2020 Yamaha MT-03 have?

The 2020 Yamaha MT-03 uses Single 298mm disc, ABS at the front and Single 220mm disc. ABS at the rear.

What tyre sizes does the 2020 Yamaha MT-03 use?

The 2020 Yamaha MT-03 runs 110/70-17 front and 140/70-17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2020 Yamaha MT-03 have?

The 2020 Yamaha MT-03 is fitted with a Constant Mesh, 6-speed transmission.

Yamaha MT-03 Spec Evolution

The Yamaha MT-03 was produced across 6 model years (2007-2021). 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	2007	2009	2010	2019	2020	2021
Max Power	33.8 kW / 48 hp @ 6000 rpm	33.8 kW / 48 hp @ 6000 rpm	33.8 kW / 48 hp @ 6000 rpm	30.9 kW 41.4 hp @ 10750 rpm	30.9 kW 41.4 hp @ 10750 rpm	30.9 kW 41.4 hp @ 10750 rpm
Engine Detail	Four stroke, single cylinder, 4 valve	Four stroke, single cylinder, 4 valve	Four stroke, single cylinder, 4 valve	Four stroke, parallel twin cylinder, 4 valve per cylinder	Four stroke, parallel twin cylinder, 4 valve per cylinder	Four stroke, parallel twin cylinder, 4 valve per cylinder
Seat Height	805 mm / 31.7 in	805 mm / 31.7 in	805 mm / 31.7 in	779.7 mm / 30.7 in	779.7 mm / 30.7 in	779.7 mm / 30.7 in
Fuel Capacity	15 Litres / 3.9 US gal	15 Litres / 3.9 US gal	15 Litres / 3.9 US gal	14 Litres / 3.7 gal	14 Litres / 3.7 gal	14 Litres / 3.7 gal
Frame Type	Steel tube truss diamond	Steel tube truss diamond	Steel tube truss diamond	Delta box	Delta box	Delta box
Displacement	659 cc / 40.2 cu-in	659 cc / 40.2 cu-in	659 cc / 40.2 cu-in	321 cc / 19.5 cu-in	321 cc / 19.5 cu-in	321 cc / 19.5 cu-in
Wheelbase	1420 mm / 55.9 in	1420 mm / 55.9 in	1420 mm / 55.9 in	1379.2 mm / 54.3 in	1379.2 mm / 54.3 in	1379.2 mm / 54.3 in
Brakes - Front	2x 295mm discs	2x 295mm discs	2x 295mm discs	Single 298mm disc	Single 298mm disc, ABS	Single 298mm disc, ABS

Key Specifications

Engine

Four stroke, parallel twin cylinder, 4 valve per cylinder

Power

30.9 kW 41.4 hp @ 10750 rpm

Torque

29.6 Nm / 22 lb-ft @ 9000 rpm

Top Speed

Not published by manufacturer

Weight

167 kg / 370 lbs

Fuel Capacity

14 Litres / 3.7 gal

Full 2020 Yamaha MT-03 Specifications

Year 2020

Make Model Yamaha MT-03

Seat Height 779.7 mm / 30.7 in

Wheelbase 1379.2 mm / 54.3 in

Ground Clearance 160 mm / 6.2 in

Height 1133 mm / 40.7 in

Length 2090 mm / 82.3 in

Width 718.8 mm / 28.3 in

Fuel Capacity 14 Litres / 3.7 gal

Wet Weight 167 kg / 370 lbs

Max Power 30.9 kW 41.4 hp @ 10750 rpm

Max Torque 29.6 Nm / 22 lb-ft @ 9000 rpm

Displacement 321 cc / 19.5 cu-in

Engine Detail Four stroke, parallel twin cylinder, 4 valve per cylinder

Bore x Stroke 68.0 x 44.1mm

Compression Ratio 11.2:1

Cooling System Liquid cooled

Fuel Induction Electronic Fuel Injection

Ignition TCI: Transistor Controlled Ignition

Lubrication Wet sump

Starter Electric

Clutch Wet, multiple-disc coil spring

Final Drive Chain

Transmission / Drive Constant Mesh, 6-speed

Frame Type Delta box

Suspension - Front 37mm Non-adjustable KYB inverted forks.

Suspension - Rear Linkage-assisted spring-preload adjustable KYB shock

Rake 25°

Trail 93.9 mm / 3.7 in

Wheel Travel - Front 130 mm / 5.1 in

Wheel Travel - Rear 124.4 mm / 4.9 in

Brakes - Front Single 298mm disc, ABS

Brakes - Rear Single 220mm disc. ABS

Tyres - Front 110/70-17

Tyres - Rear 140/70-17

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.