| |

Yamaha MT-03 (2015+) Maintenance Schedule and Service Intervals

Yamaha MT-03 cover image

This is the maintenance schedule and associated service intervals for the 2015+ Yamaha MT-03.

The MT-03 was refreshed in 2020, but the maintenance is the same as former years and made available in the US, but the maintenance is the same as former years.

The Yamaha MT-03 is based on a liquid-cooled 321cc parallel twin with dual overhead cams and 4 valves per cylinder. It’s a spritely motor. With a 11.2:1 compression ratio, it puts out a peak of 30.9 kW (41.4 hp) at 10750 rpm, and peak torque of 29.6 Nm (22 lb-ft) at 9000 rpm.

It’s very similar to the maintenance schedule for the Yamaha YZF-R3, which shares the same engine and components.

The MT-03 was updated in 2020 to get inverted front forks, but the maintenance schedule is unaffected. It still has a single brake disc up front.

This site has links for things like oil and spark plugs from which we earn a commission (which unfortunately nobody can save, not even us). If you appreciate this work, then please use those links. Thanks!

What you need to service the Yamaha MT-03

If you’re doing scheduled maintenance on an MT-03, you at least need basic motorcycle maintenance tools.

Aside from that, for the Yamaha MT-03, the manual recommends the following specific consumables.

PartYamaha MT-03/YZF-R3 Spec
Engine oilYamalube 10W-40 or Yamalube 10W-50 as recommended by Yamaha. The manual suggests it and it’s affordable on Amazon with a solid 5-star rating. Other lubricants would do, e.g. Motul 7100 10W-50 or Mobil 1 Synthetic, but that’s your call. Don’t over-torque the bolt (spec is 20 Nm/15 lb-ft per the manual) — use a torque wrench if you don’t have experience with how much torque is enough.
Oil filterNeeds to be changed every time you change the oil. Either get a stock one (part 5GH-13440-50-00, used for many Yamaha products) or the Hiflofiltro HF204RC. Torque is 17 Nm/13 lb-ft.
Engine coolantYamaha recommends “Yamacool”, but use any 50/50 ethylene glycol pre-mix.
Spark PlugsNGK CR8E. This is what the manual and mechanics suggest. Make sure it’s gapped correctly to 0.7-0.8mm (get a gapping tool) and torqued to 18 Nm/13 lb-ft (new) or 13Nm/10 lb-ft (after checking).
Air filterYamaha part number 1WD-E4451-00. You can also get the K&N equivalent, YA-3215.
Brake padsI recommend EBC double hardened brake pads for extra life and better brake feel. For the R3 and MT-03 you need one set for the front (FA663HH) and one for the rear (FA662HH).
Chain maintenanceMotul chain paste — one of the most highly-regarded chain lubes. Easy to apply, doesn’t fling off. If you need more stuff, get the Motul chain care kit as an affordable package.
Cable lubeUse Protect all cable life to lubricate your cables and controls.
GreaseAlways good to have on hand lithium soap-based grease for lubing external pivot points (like the swingarm) and bearings.
Oil, filters, coolant, plugs, and brake pads for the YZF-R3 and MT-03

Yamaha MT-03 Maintenance Schedule (US)

Below is the US maintenance schedule for the Yamaha MT-03.

The maintenance schedule is a bit different for US and Europe models.

  • US models: 3000 mile and 6-month service intervals
  • Europe models: 5000 km and 5-month OR annual service intervals.

Periodic Maintenance (Emission Control System)

The maintenance for the Yamaha MT-03 is broken into two sections: periodic maintenance for emission control systems, and general maintenance and lubrication.

Notes on the maintenance schedule

  • At the end of the maintenance schedule, keep repeating the same maintenance schedule periodically.
  • Yamaha would prefer you to only service the chain, change the oil, and grease external points.
  • See the European schedule below for the kilometer intervals
x1000 mi471013
Months6121824Every
Check fuel hoses for cracks or damage . Replace if necessary
* Check spark plug condition, adjust gap and clean
* Replace (R) periodically (NGK CR8E)
RR
Check and adjust valve clearance when engine is cold26600 mi
Check crankcase breather hose for cracks or damage . Replace if necessary
Adjust fuel injector synchronization
Check exhaust system for leakage. Tighten bolts or replace gaskets if necessary
Check evaporative emission control system for damage.
Check the air induction cut-off valve and reed valve, and hose for damage. Replace any damaged parts
MT-03 maintenance schedule – emissions (US)

General Maintenance and Lubrication Schedule

x1000 mi0.647101316
months1612182430Every
* Perform diagnostic inspection using Yamaha diagnostic tool.
* Check error codes
Replace air filter (K&N YA-3215)More often if riding in dust
Clean air filter check hose
Check clutch operation. Adjust or replace cable.
* Check front brake operation, fluid level, and for fluid leakage.
* Replace brake pads if necessary (FA663HH)
* Check rear brake operation, fluid level, and for fluid leakage.
* Replace brake pads if necessary (FA662HH)
Check brake hoses for cracks or damage, and for correct routing and clamping. Replace as necessary
Replace brake hoses4 years, or earlier as needed
Rebuild internals of brake master cylinder2 years
Change brake fluid (with Castrol DOT 4 fluid)2 years
* Check wheels runout and for damage.
* Replace if necessary.
* Check tire tread depth and for damage. Replace if necessary.
* Check tire air pressure. Correct if necessary.
Check wheel bearings for smooth operation. Replace if necessary.
Check swingarm bearing assemblies for looseness
• Moderately repack swingarm bearings with lithium soap-based grease
• Check drive chain slack, alignment and condition.
• Adjust and lubricate chain (Motul Chain Paste)
500 mi, or after riding in rain/wet
• Check steering bearing assemblies for looseness.
* Moderately repack (R) with lithium-soap- based grease
R
* Check all chassis fitting and fasteners. Tighten/ replace if necessary.
Lightly grease brake lever pivot shaft with silicone grease.
Lightly grease brake pedal pivot, clutch lever pivot, and shift pedal pivot with lithium soap-based grease lightly.
Check sidestand operation, and grease lightly.
Check sidestand switch operation and replace if necessary.
Check front fork operation and for oil leakage. Replace if necessary.
Check shock absorber operation and for oil leakage. Replace if necessary.
Change engine oil (Yamalube 10W-40)When light flashes
Check oil level and vehicle for oil leakage
• Replace oil filter (Hiflofiltro HF204RC)
Check cooling system hoses for cracks or damage. Replace parts if necessary.
Change coolant (Ethylene glycol-based coolant)
• Check brake switch (front and rear) operation
Lubricate control cables thoroughly (Protect all cable life)
* Check throttle operation and free play. Adjust if necessary.
* Lubricate the throttle grip housing and cable.
* Check lights, signals, and switches.
* Adjust headlight beam
Maintenance schedule for Yamaha MT-03 (US)

Europe MT-03 maintenance schedule

Below is the European maintenance maintenance schedule in km.

They’re quite similar, but there’s a huge difference in the valve service intervals.

Periodic Maintenance (Emission Control System)

Notes on the maintenance schedule

  • At the end of the maintenance schedule, keep repeating the same maintenance schedule periodically.
  • Yamaha would prefer you to only service the chain, change the oil, and grease external points.
  • See the European schedule below for the kilometer intervals
x1000 km5101520
Months5101520Every
Check fuel hoses for cracks or damage. Replace if necessaryYear
Check fuel filter condition and replace if necessary.
* Check spark plug condition, adjust gap and clean
* Replace (R) periodically (NGK CR8E)
RR
Check and adjust valve clearance
Check crankcase breather hose for cracks or damage . Replace if necessary
Adjust fuel injector synchronizationYear
Check exhaust system for leakage. Tighten bolts or replace gaskets if necessaryYear
Check evaporative emission control system for damage.
Check the air induction cut-off valve and reed valve, and hose for damage. Replace any damaged partsYear
MT-03 maintenance schedule – emissions

Europe MT-03: General Maintenance and Lubrication Chart

x1000 mi0.65101520
months15101520Every
* Perform diagnostic inspection using Yamaha diagnostic tool.
* Check error codes
Replace air filter (K&N YA-3215)More often if riding in dust
Check battery voltageYear
Clean air filter check hose
Check clutch operation. Adjust or replace cable.
* Check front brake operation, fluid level, and for fluid leakage.
* Replace brake pads if necessary (FA663HH)
* Check rear brake operation, fluid level, and for fluid leakage.
* Replace brake pads if necessary (FA662HH)
Check brake hoses for cracks or damage, and for correct routing and clamping. Replace as necessary
Replace brake hoses4 years, or earlier as needed
Rebuild internals of brake master cylinder2 years
Change brake fluid (with Castrol DOT 4 fluid)2 years
* Check wheels runout and for damage.
* Replace if necessary.
* Check tire tread depth and for damage. Replace if necessary.
* Check tire air pressure. Correct if necessary.
Check wheel bearings for smooth operation. Replace if necessary.
Check swingarm bearing assemblies for looseness
• Moderately repack swingarm bearings with lithium soap-based grease
• Check drive chain slack, alignment and condition.
• Adjust and lubricate chain (Motul Chain Paste)
500 mi, or after riding in rain/wet
• Check steering bearing assemblies for looseness.
* Moderately repack (R) with lithium-soap- based grease
R
* Check all chassis fitting and fasteners. Tighten/ replace if necessary.
Lightly grease brake lever pivot shaft with silicone grease.
Lightly grease brake pedal pivot, clutch lever pivot, and shift pedal pivot with lithium soap-based grease lightly.
Check sidestand operation, and grease lightly.
Check sidestand switch operation and replace if necessary.
Check front fork operation and for oil leakage. Replace if necessary.
Check shock absorber operation and for oil leakage. Replace if necessary.
Change engine oil (Yamalube 10W-40)When light flashes
Check oil level and vehicle for oil leakage
• Replace oil filter (Hiflofiltro HF204RC)
Check cooling system hoses for cracks or damage. Replace parts if necessary.
Change coolant (Ethylene glycol-based coolant)
• Check brake switch (front and rear) operation
Lubricate control cables thoroughly (Protect all cable life)
* Check throttle operation and free play. Adjust if necessary.
* Lubricate the throttle grip housing and cable.
* Check lights, signals, and switches.
* Adjust headlight beam
Maintenance schedule for Yamaha MT-03

Yamaha MT-03 Tire specs

The recommended tire sizes and pressures for the Yamaha MT-03 are as follows (per the manual):

TireSizePressure (cold)
Front110/70R-17M/C (54H)2 bar / 200 kPa (29 psi)
Rear140/70R-17M/C (66H)2.5 bar / 250 kPa (36 psi)
Tire size and pressures for the Yamaha MT-03

About the Yamaha MT-03

The MT-03 is a pocket rocket, a standard (or “Naked”) motorcycle based on the very successful YZF-R3’s engine and chassis.

Even though it’s based on a small engine, the Yamaha MT-03 is sized like a full-size motorcycle. The frame, handlebars, wheels, and tyres all look correct — not like a downsized standard.

So the Yamaha MT-03 is ideal for new riders who want to get on to a bike that’s fun, quick, and feels cool. That feeling’s important!

The 321cc liquid-cooled, inline 2-cylinder engine rips through the rpm range. Its 180-degree crank design (where it goes bang-bang-bang-pause-pause) is balanced by an integrated counter-balancer, which means that the engine has minimum vibrations in most everyday parts of the rev range.

Even though the engine is only 321ccs and produces “only” 42 hp (31 kW), the MT-03 is a lot of fun to ride hard — something you can’t do on larger bikes without ending up in illegal speed territory!

Experienced riders who get on the MT-03 end up liking it, even if most people don’t switch to it for their main ride. It’s frugal on gas, easy to maintain, and very easy to flog.

While the suspension and brakes are minimal, the bike is lightweight, which means that they’re more comfortable than budget suspension on heavier bikes.

Manual for the Yamaha MT-03

The above information was gleaned from the owner’s manual for the 2020 Yamaha MT-03 from the US and the 2018 manual from the Europe spec MT-03.

Yamaha MT-03 maintenance schedule table from manual.
Yamaha MT-03 maintenance schedule chart — US
Yamaha MT-03 maintenance schedule chart — Europe
Yamaha MT-03 maintenance schedule chart — Europe

You can download it from Yamaha’s website here.

Similar Posts