2019-2023 Kawasaki KX450FMaintenance schedule

Motocross - 450cc four-stroke

Scheduled against races ridden or engine run-time hours, whichever comes first.

Verified

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

Intervals

Each race or 2.5 hours
Every 3 races or 7.5 hours
Every 6 races or 15 hours
Every 12 races or 30 hours

Full schedule (47 items)

2019-2023 Kawasaki KX450F scheduled maintenance items and intervals
Item	Action	Interval
Air cleaner element - clean	Clean	Every 2.5 hrs
Brake - adjust †	Adjust	Every 2.5 hrs
Brake fluid level - inspect †	Inspect	Every 2.5 hrs
Brake pad wear - inspect †	Inspect	Every 2.5 hrs
Breather hose - inspect	Inspect	Every 2.5 hrs
Cable - inspect	Inspect	Every 2.5 hrs
Clutch - inspect	Inspect	Every 2.5 hrs
Clutch plates - inspect †	Inspect	Every 2.5 hrs
Coolant level - inspect	Inspect	Every 2.5 hrs
Drive chain - inspect and adjust	Adjust	Every 2.5 hrs
Drive chain - lubricate	Lubricate	Every 2.5 hrs
Drive chain wear - inspect †	Inspect	Every 2.5 hrs
Engine sprocket - inspect †	Inspect	Every 2.5 hrs
Exhaust system - inspect †	Inspect	Every 2.5 hrs
Frame - inspect	Inspect	Every 2.5 hrs
Front fork - clean and inspect	Clean	Every 2.5 hrs
General lubrication - perform	Inspect	Every 2.5 hrs
H Fuel hose, connections - inspect †	Inspect	Every 2.5 hrs
Kick pedal and shift pedal - clean	Clean	Every 2.5 hrs
Nuts, bolts, fasteners - inspect †	Inspect	Every 2.5 hrs
Rear axle nutinspect †	Inspect	Every 2.5 hrs
Rear shock absorber - inspect	Inspect	Every 2.5 hrs
Rear sprocket - inspect †	Inspect	Every 2.5 hrs
S Brake hoses, connections - inspect †	Inspect	Every 2.5 hrs
S Spoke tightness and rim runout - inspect †	Inspect	Every 2.5 hrs
S Steering play - inspect †	Inspect	Every 2.5 hrs
Spark plug - clean and inspect †	Clean	Every 2.5 hrs
Throttle body assy - inspect and adjust	Adjust	Every 2.5 hrs
Throttle cable - inspect and adjust	Adjust	Every 2.5 hrs
Water hoses and connections - inspect †	Inspect	Every 2.5 hrs
Wheel bearing - inspect †	Inspect	Every 2.5 hrs
Wheels/tires - inspect	Inspect	Every 2.5 hrs
S Fuel system - clean	Clean	Every 7.5 hrs
Silencer wool - replace	Replace	Every 7.5 hrs
Spark plug - replace	Replace	Every 7.5 hrs
Swingarm and Uni-Trak linkage pivots - inspect †	Inspect	Every 7.5 hrs
Swingarm and Uni-Trak linkage pivots - lubricate	Lubricate	Every 7.5 hrs
Crankshaft - inspect	Inspect	Every 15 hrs
Cylinder head, cylinder - inspect	Inspect	Every 15 hrs
E Piston and piston ring - replace	Replace	Every 15 hrs
Engine oil - change	Replace	Every 15 hrs
Front fork oil - change	Replace	Every 15 hrs
N Valve clearance - inspect †	Inspect	Every 15 hrs
Oil filter - replace	Replace	Every 15 hrs
Rear shock absorber oil - change	Replace	Every 15 hrs
Steering stem bearing - lubricate	Lubricate	Every 15 hrs
I Piston pin - replace	Replace	Every 30 hrs

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

Legend

periodic — Serviced at this interval (marked in the OEM chart)

From the manual

Maintenance must be done in accordance with this chart to keep the motorcycle in good running condition.
Items marked with a dagger in the manual require more mechanical skill; Kawasaki recommends a dealer perform them.

Source: Kawasaki KX450F Service Manual (P/N 99924-1502-01) · Chart read from the 2016 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