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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 2015-2020 Yamaha MT-03.

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

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

Also, many Yamaha motorcycles use similar re-usables like oil and spark plugs.

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.

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 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).
Oil, filters, coolant, plugs, and brake pads for the YZF-R3 and MT-03

And the following general consumables are useful as well.

PhotoDescription
motorcycle maintenance tools - paddock standPaddock Stand — Makes maintaining your chain or doing other maintenance much easier.
motorcycle maintenance tools - motul chain pasteMotul 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.
Valvoline full synthetic lithium soap-based greaseAlways good to have on hand lithium soap-based grease for lubing external pivot points (like the swingarm) and bearings.
motorcycle maintenance - cable lubricantUse Protect all cable life to lubricate your cables and controls.
General motorcycle maintenance consumables

Yamaha MT-03 Maintenance Schedule

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

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

Note: The below is mostly from the US 2020 MT-03 manual. The items are largely the same as in other markets, but the timing is different, with required intervals more spaced out.

Periodic Maintenance Emission Control System

TIP

  • After 16,000 miles or 40,000 km, keep repeating the same maintenance schedule periodically.
  • Miles are from the US manuals, and kilometers from the Europe/Australia ones.
  • Yamaha would prefer you to only service the chain, change the oil, and grease external points. So items marked with an asterisk (*) are those that Yamaha think require special tools, data and skills, and that you should have a Yamaha dealer perform the service.
  • Maintenance intervals in the Europe manual are wider.
x1000 mi (US manuals)0.647101316
x1000 km (Europe manuals)110203040
Itemmonth1612182430
Fuel line*•Check fuel hoses for cracks or damage
•Replace if necessary
Spark plugs•Check condition
•Adjust gap and clean
•Replace (NGK CR8E) periodically
ReplaceReplace
Valve clearance*•Check and adjust valve clearance when engine is coldEvery 26600 mi (40000 km)
Crankcase breather system*•Check breather hose for cracks or damage
•Replace if necessary
Fuel injection*•Adjust synchronization
Exhaust system*•Check for leakage
•Tighten if necessary
•Replace gasket(s) if necessary
Evaporative emission control system* (for California only)•Check control system for damage
•Replace if necessary
Air induction system*•Check the air cut-off valve and reed valve, and hose for damage
•Replace any damaged parts
MT-03 maintenance schedule – emissions

General Maintenance and Lubrication Chart

x1000 mi0.647101316
x1000 km1611162126
Itemmonth1612182430
Diagnostic system check*• Perform dynamic inspection using Yamaha diagnostic tool (presuming you have one)
• Check the error codes
Air filter element• Replace (K&N YA-3215)
Air filter check hose• Clean
Clutch*• Check operation.
• Adjust or replace cable.
Front brake*• Check operation, fluid level, and for fluid leakage.
• Replace brake pads if necessary (FA663HH)
Rear brake*• Check operation, fluid level, and for fluid leakage.
• Replace brake pads if necessary (FA662HH)
Brake hose*• Check for cracks or damage.
• Check for correct routing and clamping
• Replace.Every 4 years
Brake fluid*• Change (with DOT 4 fluid)Every 2 years
Wheels*• Check runout and for damage.
• Replace if necessary.
Tires*• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.
Wheel bearings*• Check bearings for smooth operation.
• Replace if necessary.
Swingarm pivot bearings*• Check bearing assemblies for looseness
• Moderately repack with lithium-soap-based grease
Drive chain• Check chain slack, alignment and condition.
• Adjust and lubricate chain (use Motul Chain Paste) thoroughly.
Every 500 mi (800 km) and after washing the motorcycle, riding in the rain or riding in wet areas
Steering bearings*• Check bearing assemblies for looseness.
• Moderately repack with lithium-soap-based grease
Repack
Chassis fasteners*• Check all chassis fitting and fasteners.
• Correct if necessary.
Brake lever pivot shaft• Apply silicone grease lightly
Brake pedal pivot shaft• Apply lithium-soap-based grease lightly.
Clutch lever pivot shaft• Apply lithium-soap-based grease lightly.
Shift pedal pivots shaft• Apply lithium-soap-based grease lightly.
Sidestand pivot• Check operation.
• Apply lithium-soap-based grease lightly.
Sidestand switch*• Check operation and replace if necessary.
Front fork*• Check operation and for oil leakage.
• Replace if necessary.
Shock absorber assembly*• Check operation and for oil leakage.
• Replace if necessary.
Engine oil• Change (Yamalube 10W-40 or Yamalube 10W-50)When the oil indicator flashes
• Check oil level and vehicle for oil leakage
Engine oil filter cartridge• Replace. (Hiflofiltro HF204RC)
Cooling system• Check hoses for cracks or damage.
• Replace if necessary.
• Change coolant
Front and rear brake switches• Check operation
Control cables• Apply cable lubricant thoroughly
Throttle grip• Check operation and free play.
• Adjust the throttle cable free play if necessary.
• Lubricate the throttle grip housing and cable.
Lights, signals and switches• Check operation
• Adjust headlight beam
Maintenance schedule for Yamaha MT-03

NOTES

Air filter:

  • The MT-03’s air filter has a disposable oil-coated paper element, which must not be cleaned with compressed air to avoid damaging it
  • The air filter element needs to be replaced more frequent when riding in unusually wet or dusty areas

Hydraulic brake service:

  • After disassembling the brake master cylinders and calipers, always change the fluid. Regularly check the brake and clutch fluid levels and fill the reservoirs as required
  • Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid
  • Replace the brake hoses every four years or if cracked or damaged.

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)200 kPa (29 psi)
Rear140/70R-17M/C (66H)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.

The 321cc liquid-cooled, inline 2-cylinder engine rips through the rpm range. With a 180-degree crank design and integrated counter-balancer, the the engine minimizes vibrations for a smooth, refined engine character.

Changing the R3’s clip-ons to handlebars, and changing the posture a little bit, makes the MT-03 very easy to ride and an excellent beginner’s bike.

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!

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.

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