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

300NK

Library entry covers 2020-2025

42 factory 29 guideline

Published source

CFMoto 300NK Owner's Manual (English), Periodic Maintenance Schedule pp.91-96

Factory owner's handbook. Covers CFMoto 300NK (US-market CF300), owner's manual; Periodic Maintenance Schedule pp.91-96, whichever comes first; severe use halves marked items.

71 items for a 2024 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: Fuel injection
Cooling: Liquid 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

2024 CFMoto 300NK

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 500 mi

1 item

Check coolant level

Pre-ride / on the road

Guideline

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 6 months

5 items

Change engine oil

Engine

Factory

Manual: Engine oil and oil filter (replace). Factory: 6M / 3000 mi / 5000 km, Replace
Clean oil strainers / mesh screens

Engine

Factory

Manual: Oil strainer (clean). Factory: 6M / 3000 mi / 5000 km, Clean
Fuses or circuit breakers (inspect)

Engine

Factory

Factory: 6M / 3000 mi / 5000 km, Inspect
Replace oil filter

Engine

Factory

Manual: Engine oil filter (replace with oil). Factory: Same row as engine oil: 6M / 3000 mi / 5000 km, Replace
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Battery (inspect). Factory: 6M / 3000 mi / 5000 km, Inspect

Every 3,000 mi or 12 months

6 items

Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect fork seals, stanchions and fork boots

Front end

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

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Cables and wires (inspect for damage, bending and routing)

Controls and cables

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 3000 mi / 5000 km and 24M / 9000 mi / 15000 km. Dealer item.

Every 3,000 mi

5 items

Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug (inspect). Factory: 3000 mi / 5000 km, Inspect; dealer item
Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Throttle system (inspect). Factory: 3000 mi / 5000 km, Inspect
Clean / inspect air filter

Fuel and air

Factory

Manual: Air filter element (clean). Factory: 3000 mi / 5000 km, Clean; severe-use item (halve interval) and dealer item
Synchronize throttle bodies

Fuel and air

Factory

Manual: Throttle valve (clean). Factory: 3000 mi / 5000 km, Clean; dealer item
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch (inspect). Factory: 3000 mi / 5000 km, Inspect; dealer item (square mark)

Every 6,000 mi or 12 months

25 items

Bolts and nuts (inspect for fastness)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 48M / 18000 mi / 30000 km. Dealer item.
Coolant (inspect)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Dealer item.
Coolant level (inspect)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km.
Diagnosis connector (read with PDA)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Dealer item.
Functions of electrical parts (inspect)

Engine

Factory

Factory: 12M / 6000 mi / 10000 km, Inspect; dealer item
Inspect coolant hoses and clamps

Engine

Factory

Manual: Coolant hoses (inspect). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 48M / 18000 mi / 30000 km. Dealer item.
Mobile parts (lubricate; inspect for flexibility)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 48M / 18000 mi / 30000 km. Dealer item.
Radiator fan function (inspect)

Engine

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Dealer item.
Wires (inspect for damage, bending and routing)

Engine

Factory

Factory: 12M / 6000 mi / 10000 km; dealer item
Replace fuel lines

Fuel and air

Factory

Manual: Pipes, ducts, hoses and sleeves (inspect for cracks, sealing and routing). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 48M / 18000 mi / 30000 km. Dealer item.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Inspect chain and sprockets for wear (measure stretch)

Final drive

Factory

Manual: Chain, rear sprocket and engine sprocket (inspect). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Severe-use item.
Check steering head bearing adjustment

Front end

Factory

Manual: Steering bearings (inspect). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Dealer item.
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Factory

Manual: Rear shock absorber and front forks (inspect for leaking). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Dealer item.
Brake discs (inspect)

Brakes

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km.
Brake fluid level (inspect)

Brakes

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 12000 mi / 20000 km.
Brake lever (inspect for free play)

Brakes

Factory

Factory: Chart header: service whichever interval comes first. Printed: 24M / 12000 mi / 20000 km and 12M / 6000 mi / 10000 km.
Check brake pads and discs

Brakes

Factory

Manual: Brake pads (inspect). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km. Severe-use item.
Front and rear brake system (inspect)

Brakes

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km.
Inspect brake hoses; replace old rubber

Brakes

Factory

Manual: Brake hoses (inspect for damage and sealing). Factory: Chart header: service whichever interval comes first. Printed: 24M / 12000 mi / 20000 km and 12M / 6000 mi / 10000 km. Dealer item.
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Tire condition (inspect). Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km.
Tire pressure (inspect)

Wheels and tires

Factory

Factory: Chart header: service whichever interval comes first. Printed: 12M / 6000 mi / 10000 km and 24M / 12000 mi / 20000 km.
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 6,000 mi

5 items

Idle (inspect)

Engine

Factory

Factory: 6000 mi / 10000 km, Inspect
Replace spark plugs

Engine

Factory

Manual: Spark plug (replace). Factory: 6000 mi / 10000 km, Replace; dealer item
Suspension system (inspect)

Engine

Factory

Factory: 6000 mi / 10000 km, Inspect; dealer item
Grease swingarm pivot

Rear suspension and frame

Factory

Manual: Swing arms (inspect). Factory: Chart header: service whichever interval comes first. Printed: 6000 mi / 10000 km and 18000 mi / 30000 km. Dealer item.
Check wheel bearings for play

Wheels and tires

Factory

Manual: Wheel bearings (inspect). Factory: Chart header: service whichever interval comes first. Printed: 6000 mi / 10000 km and 18000 mi / 30000 km. Dealer item.

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

Factory

Manual: Air filter element (replace). Factory: 24M / 12000 mi / 20000 km, Replace; severe-use and dealer item
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline

Every 15,000 mi or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 18,000 mi

2 items

Replace chain and sprockets (wear based)

Final drive

Guideline
Frame (inspect)

Rear suspension and frame

Factory

Factory: 18000 mi / 30000 km, Inspect

Every 20,000 mi or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

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

Every 21,000 mi or 2 years

1 item

Replace coolant

Engine

Factory

Manual: Coolant (replace). Factory: 24M / 21000 mi / 35000 km, Replace; dealer item

Every 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 24,000 mi

1 item

Check and adjust valve clearances

Engine

Factory

Manual: Valve clearance (inspect). Factory: 24000 mi / 40000 km, Inspect; dealer item

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 2 years

3 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Factory

Manual: Brake fluid (replace). Factory: 24M, Replace; dealer item

Every 4 years

1 item

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.