2014-2018 Yamaha YZ250FMaintenance schedule

Motocross - 250cc four-stroke

Scheduled against races ridden and approximate engine hours (2.5 h per race).

Verified

Every interval on this page was read directly from the OEM chart.

Intervals

After break-in
Every race (about 2.5 hours)
Every third race (about 7.5 hours)
Every fifth race (about 12.5 hours)
As required

Full schedule (69 items)

2014-2018 Yamaha YZ250F scheduled maintenance items and intervals
Item	Action	Interval
AIR FILTER Clean and lubricate	Clean, Lubricate	Every 2.5 hrs Also marked: After break-in
BRAKE(S) Adjust lever position and pedal height	Adjust	Every 2.5 hrs Also marked: After break-in
BRAKE(S) Lubricate pivot point	Lubricate	Every 2.5 hrs Also marked: After break-in
BRAKE(S) Check brake disc surface	Inspect	Every 2.5 hrs Also marked: After break-in
BRAKE(S) Check fluid level and leakage	Inspect	Every 2.5 hrs Also marked: After break-in
BRAKE(S) Retighten brake disc bolts, caliper bolts, master cylinder bolts and union	Inspect	Every 2.5 hrs Also marked: After break-in
CABLES Routing (Connection)	Inspect	Every 2.5 hrs Also marked: After break-in
CABLES Check and grease	Lubricate	Every 2.5 hrs Also marked: After break-in
CABLES Check and clean throttle cable	Clean	Every 2.5 hrs Also marked: After break-in
CLUTCH Inspect and adjust	Adjust	Every 2.5 hrs Also marked: After break-in
COOLING SYSTEM Check coolant level and leakage	Inspect	Every 2.5 hrs Also marked: After break-in
COOLING SYSTEM Check radiator cap attached	Inspect	Every 2.5 hrs Also marked: After break-in
COOLING SYSTEM Inspect hoses	Inspect	Every 2.5 hrs
DRIVE CHAIN Clean, lubricate, slack, alignment	Clean, Lubricate	Every 2.5 hrs Also marked: After break-in
DRIVE CHAIN GUIDE Inspect	Inspect	Every 2.5 hrs
ENGINE OIL Inspect	Inspect	Every 2.5 hrs Also marked: As required
EXHAUST PIPE, SILENCER, PROTECTOR Inspect and retighten	Inspect	Every 2.5 hrs Also marked: After break-in
FRAME Clean and inspect	Clean	Every 2.5 hrs Also marked: After break-in
FRONT FORK LEG Clean	Clean	Every 2.5 hrs Also marked: After break-in
FRONT FORK LEG Inspect and adjust	Adjust	Every 2.5 hrs Also marked: After break-in
FRONT FORK LEG Clean and grease oil seals and dust seals	Clean, Lubricate	Every 2.5 hrs Also marked: After break-in; As required
REAR SHOCK ABSORBER Inspect and adjust	Adjust	Every 2.5 hrs Also marked: After break-in
REAR SHOCK ABSORBER Retighten	Inspect	Every 2.5 hrs Also marked: After break-in
RELAY ARM, CONNECTING ROD Inspect, lube and retighten	Inspect	Every 2.5 hrs Also marked: After break-in
STEERING HEAD Inspect free play and retighten	Inspect	Every 2.5 hrs Also marked: After break-in
SWINGARM Inspect, lube and retighten	Inspect	Every 2.5 hrs Also marked: After break-in
TIRE, WHEELS Inspect air pressure, wheel runout, tire wear and spoke looseness	Inspect	Every 2.5 hrs Also marked: After break-in
TIRE, WHEELS Retighten sprocket bolt	Inspect	Every 2.5 hrs Also marked: After break-in
ENGINE OIL Replace	Replace	Every 7.5 hrs Also marked: After break-in
EXHAUST PIPE, SILENCER, PROTECTOR Replace fiver	Replace	Every 7.5 hrs Also marked: As required
FUEL TANK, FUEL PUMP Inspect	Inspect	Every 7.5 hrs Also marked: After break-in
REAR SHOCK ABSORBER Lubricate	Lubricate	Every 7.5 hrs Also marked: As required
SPARK PLUG Inspect and clean	Clean	Every 7.5 hrs Also marked: After break-in
TIRE, WHEELS Check the bearing	Inspect	Every 7.5 hrs
TIRE, WHEELS Lubricate	Lubricate	Every 7.5 hrs
CRANKSHAFT Inspect and clean	Clean	Every 12.5 hrs Also marked: As required
CYLINDER Inspect and clean	Clean	Every 12.5 hrs
CYLINDER HEAD Inspect and clean	Clean	Every 12.5 hrs
EXHAUST PIPE, SILENCER, PROTECTOR Clean	Clean	Every 12.5 hrs
FRONT FORK LEG Replace oil	Replace	Every 12.5 hrs Also marked: After break-in
NUT (ROTOR) Retighten	Inspect	Every 12.5 hrs Also marked: After break-in
OIL FILTER ELEMENT Replace	Replace	Every 12.5 hrs Also marked: After break-in
OIL STRAINER Clean	Clean	Every 12.5 hrs
PISTON PIN Replace	Replace	Every 12.5 hrs Also marked: As required
PISTON RING Replace	Replace	Every 12.5 hrs Also marked: As required
STEERING HEAD Clean and lube	Clean	Every 12.5 hrs
AIR FILTER Replace	Replace	One time Also marked: As required
BRAKE(S) Replace pads	Replace	One time Also marked: As required
BRAKE(S) Replace brake fluid	Replace	One time Also marked: As required
CLUTCH Replace	Replace	One time Also marked: As required
COOLING SYSTEM Check radiator cap operation	Inspect	One time Also marked: As required
COOLING SYSTEM Change the coolant	Replace	One time Also marked: As required
CYLINDER Replace	Replace	One time Also marked: As required
DRIVE CHAIN Replace	Replace	One time Also marked: As required
DRIVE CHAIN GUIDE AND DRIVE CHAIN SUPPORT Replace	Replace	One time Also marked: As required
ENGINE GUARD Replace	Replace	One time Also marked: As required
FRONT FORK LEG Replace oil seal	Replace	One time Also marked: As required
FUEL HOSE Inspect	Inspect	One time Also marked: As required
FUEL HOSE Replace	Replace	One time Also marked: As required
PISTON PIN Inspect	Inspect	One time Also marked: As required
PISTON RING Inspect	Inspect	One time Also marked: As required
PROTECTOR GUIDE Replace	Replace	One time Also marked: As required
SHIFT FORK, SHIFT CAM, GUIDE BAR Inspect	Inspect	One time Also marked: As required
SPARK PLUG Replace	Replace	One time Also marked: As required
STEERING HEAD Replace bearings	Replace	One time Also marked: As required
THROTTLE BODY Inspect	Inspect	One time Also marked: As required
TIRE, WHEELS Replace bearings	Replace	One time Also marked: As required
TRANSMISSION Inspect	Inspect	One time Also marked: As required
TRANSMISSION Replace bearings	Replace	One time Also marked: As required

Every row above is factory schedule, straight from the chart. Intervals are shown in hrs.

Specs

From the 2015 manual's technical data section. Check yours before buying — these change between model years.

Displacement: 250 cm3
Compression ratio: 13.5:1
Valve clearance (cold): intake: 0.13–0.20 mm (0.0051–0.0079 in)
exhaust: 0.17–0.24 mm (0.0067–0.0094 in)
Spark plug: NGK/LMAR8G
Plug gap: 0.7–0.8 mm (0.028–0.031 in)
Engine oil: disassembled: 0.90 L (0.95 US qt, 0.79 Imp.qt)
Fuel: tank: 7.5 L (1.98 US gal, 1.65 Imp.gal)
Tire pressure (cold): front: 100 kPa (1.00 kgf/cm2, 15 psi)
rear: 100 kPa (1.00 kgf/cm2, 15 psi)
Secondary reduction: 3.846 (50/13)

Legend

Y — Service this item at this interval (marked in the OEM chart)

Chart notes

1. Items marked with an asterisk in the manual should be performed by a Yamaha dealer - they need special tools, data and technical skills.
2. Calendar items (coolant, brake fluid, fuel hose) sit in the Remarks column rather than in the interval columns.

From the manual

Service life of parts varies significantly with the environment the machine runs in (rain, dirt); inspect earlier if conditions are harsh.
Periodic inspection is essential to make full use of machine performance.

Source: 2015 Yamaha YZ250F Owner's Service Manual · Chart read from the 2015 manual. Intervals change between model years — confirm against yours.

Always confirm intervals, torque specs and part numbers against your own service manual. This site is a shopping aid, not a repair manual.

Open the hour meter tool