Motorcycle Service Checklist: Oil, Filters, Spark Plugs and More

A regularly serviced motorcycle is safer, more economical and lasts longer. The list below summarises the main items checked at a typical service for most motorcycles and scooters. Always follow your owner's manual for intervals and specifications.

Service checklist

Item	What to do
Engine oil	Replace with the viscosity and standard in the manual
Oil filter	Replace with every oil change
Air filter	Clean or replace (more often in dusty conditions)
Spark plug	Check electrode wear and deposits, replace if needed
Brake pads and fluid	Check thickness, fluid level and colour
Chain or drive belt	Chain slack and lubrication; belt condition on scooters
Coolant	Level and leaks (liquid-cooled models)
Tyres	Pressure, tread depth, ageing cracks
Battery	Terminals and state of charge
Lights and indicators	Headlight, brake light, indicators and horn
Cables	Free play, stiffness and wear on throttle and clutch cables

Choosing the right engine oil

• Geared motorcycles with a wet clutch need motorcycle oil meeting JASO MA/MA2 to prevent clutch slip. Car oils may contain friction modifiers and are not suitable.
• Scooters with a dry clutch usually call for JASO MB oils.
• Viscosity (e.g. 10W-40) and capacity are in the manual; replace the oil filter at every oil change.

Filters

A clogged air filter starves the engine of air, reducing performance and increasing fuel consumption — check it more often if you ride on dusty roads. The oil filter traps metal particles and should be replaced with every oil change.

Spark plug

Hard starting, rough idle and misfiring can be plug-related. Plug type and heat range are engine-specific; check the gap against the manual.

Brake fluid

Brake fluid absorbs moisture over time, lowering its boiling point. Many manufacturers recommend renewing it at set intervals (often every two years). Dark fluid can be a sign it's due. Don't mix different DOT standards.

Tyres

Correct pressure determines grip and tyre life. Measure when the tyres are cold; values are usually in the manual and on a sticker on the swingarm or frame.

Get your service parts in one order

Select your motorcycle on our site to find oil filters, air filters, spark plugs and other service parts in one go, and browse the Oils & Maintenance category for care products.