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Kawasaki · Overhead-cam four-stroke single, wet sump, gearbox shares engine oil, chain drive

KLX 140

Library entry covers 2008-2025

46 factory 25 guideline

Published source

Kawasaki 2008 KLX140 KLX140A Owner's Manual 99987-1447 (US, English), Periodic Maintenance Chart pp.34-37

Factory owner's handbook. Covers KLX140A (2008 KLX140, 144 cc single, off-road); 2008 US owner's manual 99987-1447, English. Three-part chart (1. Periodic Inspection, Engine Related Item; 2. Periodic Inspection, Chassis Related Item; 3. Periodic Replacement) with columns Initial 5 hours (1 month) and Every 50 hours (6 month) and 100 hours (12 month). No odometer intervals are printed; months are used here and the hour figures are kept in each detail. dagger = replace, add, adjust, clean or torque if necessary; (K) = should be serviced by referring to the Service Manual or an authorized Kawasaki dealer; O = emission-related item. Air cooled, carbureted, chain final drive, spoked wheels. Catalog row 2008-2025; same KLX140 family.

Open the source

71 items for a 2020 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Single carburetor
Cooling: Air / oil cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Shares engine oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2020 Kawasaki KLX 140

On the road: every 200 mi

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 300 mi

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 600 mi

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 3,000 mi or 12 months

3 items

Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline

Every 6,000 mi or 12 months

5 items

Clean carburetor float bowl(s), check float level and jets

Fuel and air

Guideline

Ethanol fuel varnishes old carbs quickly in storage.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 10,000 mi or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 12,000 mi or 2 years

2 items

Replace air filter element

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline

Every 16,000 mi or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 18,000 mi

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 20,000 mi or 4 years

1 item

Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 25,000 mi or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 30,000 mi or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

35 items

Change engine oil

Engine

Factory

Manual: Engine oil. Factory: Periodic Replacement table: marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here (p.37)
Chassis parts - lubricate

Engine

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here (p.36)
Engine sprocket - inspect

Engine

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.34)
Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug - clean, gap. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; O: emission-related item (p.34)
Nuts, bolts, fasteners - inspect

Engine

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Rear sprocket - inspect

Engine

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Replace oil filter

Engine

Factory

Manual: Oil filter. Factory: Periodic Replacement table: marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here (p.37)
Shift pedal pivot - grease

Engine

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Throttle grip play - inspect. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; O: emission-related item (p.34)
Clean / inspect air filter

Fuel and air

Factory

Manual: Air cleaner element - clean. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; O: emission-related item (p.34)
Clean fuel tap filter / sediment bowl

Fuel and air

Factory

Manual: Fuel tap - clean. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.34)
Fuel hose connections - inspect

Fuel and air

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.34)
Battery - inspect

Ignition and electrics

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.36)
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Battery terminal - inspect. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.36)
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch cable - adjust. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.34)
Clutch and friction plate - inspect

Primary and gearbox

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.34)
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Factory

Manual: Drive chain - lubricate. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here (p.35)
Drive chain - inspect and adjust

Final drive

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Drive chain guide and slipper - inspect

Final drive

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Drive chain wear - check

Final drive

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Change fork oil

Front end

Factory

Manual: Front fork oil. Factory: Periodic Replacement table: marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Check steering head bearing adjustment

Front end

Factory

Manual: Steering play - inspect. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Front fork - inspect and clean

Front end

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.35)
Grease swingarm pivot

Rear suspension and frame

Factory

Manual: Swingarm and Uni-track linkage pivot - grease. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Factory

Manual: Frame - inspect and clean. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here (p.36)
Inspect rear shocks for leaks and damping

Rear suspension and frame

Factory

Manual: Rear shock absorber - inspect. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Rear shock oil

Rear suspension and frame

Factory

Factory: Periodic Replacement table: marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Swingarm and Uni-track linkage pivot - inspect

Rear suspension and frame

Factory

Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Brake adjustment - inspect

Brakes

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Brake fluid level - check

Brakes

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Brake hoses connections - check

Brakes

Factory

Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Check brake pads and discs

Brakes

Factory

Manual: Brake pad wear - check. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Check spoke tension and wheel true

Wheels and tires

Factory

Manual: Spoke tightness and rim runout - check. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.35)
Check wheel bearings for play

Wheels and tires

Factory

Manual: Wheel bearing - check. Factory: Marked at 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Wheels/tires - inspect. Factory: Marked at Initial 5 hours (1 month), 50 hours (6 month), 100 hours (12 month); repeats every 50 hours (6 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.36)

Every 12 months

6 items

Check and adjust valve clearances

Engine

Factory

Manual: Valve clearance - inspect. Factory: Marked at Initial 5 hours (1 month), 100 hours (12 month); repeats every 100 hours (12 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary; O: emission-related item (p.34)
Shift pedal ball joint - inspect

Engine

Factory

Factory: Marked at Initial 5 hours (1 month), 100 hours (12 month); repeats every 100 hours (12 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.36)
Spark arrester - clean

Engine

Factory

Factory: Marked at 100 hours (12 month); repeats every 100 hours (12 month); hour figures as printed, months used here (p.34)
Front fork oil - inspect

Front end

Factory

Factory: Printed as 'Every 1 year' across the chart; printed as 'Every year'; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.35)
Repack / replace steering head bearings

Front end

Factory

Manual: Steering stem bearing - grease. Factory: Marked at 100 hours (12 month); repeats every 100 hours (12 month); hour figures as printed, months used here; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.35)
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Side stand - inspect. Factory: Marked at Initial 5 hours (1 month), 100 hours (12 month); repeats every 100 hours (12 month); hour figures as printed, months used here; dagger: replace, add, adjust, clean or torque if necessary (p.36)

Every 2 years

4 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Brake caliper piston seal and dust seal

Brakes

Factory

Factory: Printed as 'Every 2 years' across the chart; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Brake master cylinder cup and dust seal

Brakes

Factory

Factory: Printed as 'Every 2 years' across the chart; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Replace brake fluid

Brakes

Factory

Manual: Brake fluid. Factory: Printed as 'Every 2 years' across the chart; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)

Every 4 years

3 items

Replace fuel lines

Fuel and air

Factory

Manual: Fuel hose. Factory: Printed as 'Every 4 years' across the chart; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Inspect brake hoses; replace old rubber

Brakes

Factory

Manual: Brake hose. Factory: Printed as 'Every 4 years' across the chart; (K): should be serviced by referring to the Service Manuals or an authorized Kawasaki dealer (p.37)
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.