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

CRF 150

Library entry covers 2004-2025

36 factory 36 guideline

Published source

Honda CRF150R/RB 2020 Owner's Manual 31KSE710 (US market, English), Maintenance Schedule pp.20-21

Factory owner's handbook. Covers CRF150R/RB (competition); 2020 US (American Honda) owner's manual 31KSE710, English; intervals in races/riding hours.

72 items for a 2006 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: 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: Drum (or band / belt rim)
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2006 Honda CRF 150

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

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

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

On the road: every 2.5 h

1 item

Lubricate drive chain

Pre-ride / on the road

Factory

Manual: Drive chain (inspect, lubricate, replace). Factory: Inspect and lubricate every race (about 2.5 hours); replace every 3 races (about 7.5 hours)

Every 1,000 mi or 6 months

1 item

Adjust rear drum brake and rod / cable linkage

Brakes

Guideline

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
Check wheel bearings for play

Wheels and tires

Guideline

Every 4,000 mi or 12 months

1 item

Lubricate brake cam spindles, check linings and drums

Brakes

Guideline

Every 6,000 mi or 12 months

4 items

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

3 items

Replace air filter element

Fuel and air

Guideline
Synchronize throttle bodies

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 15,000 mi

1 item

Replace brake linings / skim drums (wear based)

Brakes

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

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 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

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 2.5 h or 2 years

2 items

Replace coolant

Engine

Factory

Manual: Radiator coolant (replace). Factory: Inspect every race (about 2.5 hours); Note 2: replace every 2 years, replacement requires mechanical skill
Replace brake fluid

Brakes

Factory

Manual: Brake fluid (replace). Factory: Inspect every race (about 2.5 hours); Note 2: replace every 2 years, replacement requires mechanical skill

Every 2.5 h

19 items

Check engine breather and oil return

Engine

Factory

Manual: Crankcase breather (inspect). Factory: Inspect every race (about 2.5 hours)
Engine idle speed (inspect)

Engine

Factory

Factory: Inspect every race (about 2.5 hours)
Exhaust pipe/muffler (inspect)

Engine

Factory

Factory: Inspect every race (about 2.5 hours)
Hot starter (inspect)

Engine

Factory

Factory: Inspect every race (about 2.5 hours)
Inspect coolant hoses and clamps

Engine

Factory

Manual: Cooling system (inspect). Factory: Inspect every race (about 2.5 hours)
Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug (inspect). Factory: Inspect every race (about 2.5 hours); no replace mark in schedule
Nuts, bolts, fasteners (inspect)

Engine

Factory

Factory: Inspect every race (about 2.5 hours)
Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Throttle operation (inspect). Factory: Inspect every race (about 2.5 hours)
Clean / inspect air filter

Fuel and air

Factory

Manual: Air filter (clean). Factory: Clean every race (about 2.5 hours); Note 1: clean after every moto for dusty riding conditions
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch system (inspect). Factory: Inspect every race (about 2.5 hours); Note 5: replace the transmission oil if the clutch discs and plates are replaced
Transmission oil (replace)

Primary and gearbox

Factory

Factory: Inspect every race (about 2.5 hours), replace every 6 races (about 15.0 hours); Note 5: replace the transmission oil if the clutch discs and plates are replaced
Drive chain roller (inspect)

Final drive

Factory

Factory: Inspect every race (about 2.5 hours)
Drive chain slider (inspect)

Final drive

Factory

Factory: Inspect every race (about 2.5 hours)
Inspect chain and sprockets for wear (measure stretch)

Final drive

Factory

Manual: Drive and driven sprockets (inspect). Factory: Drive sprocket and driven sprocket (separate rows): inspect every race (about 2.5 hours)
Inspect rear shocks for leaks and damping

Rear suspension and frame

Factory

Manual: Suspension (inspect). Factory: Inspect every race (about 2.5 hours)
Brake system (inspect)

Brakes

Factory

Factory: Inspect every race (about 2.5 hours)
Check brake pads and discs

Brakes

Factory

Manual: Brake pads wear (inspect). Factory: Inspect every race (about 2.5 hours)
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Wheels/tires (inspect). Factory: Inspect every race (about 2.5 hours)
Control cables (inspect, lubricate)

Controls and cables

Factory

Factory: Inspect and lubricate every race (about 2.5 hours)

Every 7.5 h

2 items

Change fork oil

Front end

Factory

Manual: Fork oil (replace). Factory: Replace every 3 races (about 7.5 hours); Note 3: replace after the first break-in ride
Clean and grease rear suspension linkage

Rear suspension and frame

Factory

Manual: Swingarm/shock linkage (lubricate). Factory: Lubricate every 3 races (about 7.5 hours)

Every 15 h

5 items

Change engine oil

Engine

Factory

Manual: Engine oil (replace). Factory: Replace every 6 races (about 15.0 hours); Note 3: replace after the first break-in ride
Check and adjust valve clearances

Engine

Factory

Manual: Valve clearance/decompressor system (inspect). Factory: Inspect every 6 races (about 15.0 hours); Note 4: inspect after the first break-in ride
Piston and piston rings (replace)

Engine

Factory

Factory: Replace every 6 races (about 15.0 hours)
Piston pin (replace)

Engine

Factory

Factory: Replace every 6 races (about 15.0 hours)
Replace oil filter

Engine

Factory

Manual: Engine oil filter (replace). Factory: Replace every 6 races (about 15.0 hours); Note 3: replace after the first break-in ride

Every 22.5 h

1 item

Check steering head bearing adjustment

Front end

Factory

Manual: Steering head bearings (inspect). Factory: Inspect every 9 races (about 22.5 hours)

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

2 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
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

No interval set

6 items

ENGINE OIL (NOTE 3): replace after the first break-in ride

Engine

Factory

Factory: As printed: NOTE 3: Replace after the first break-in ride.
ENGINE OIL FILTER (NOTE 3): replace after the first break-in ride

Engine

Factory

Factory: As printed: NOTE 3: Replace after the first break-in ride.
VALVE CLEARANCE/DECOMPRESSOR SYSTEM (NOTE 4): inspect after the first break-in ride

Engine

Factory

Factory: As printed: NOTE 4: Inspect after the first break-in ride.
AIR FILTER (NOTE 1): clean after every moto for dusty riding conditions

Fuel and air

Factory

Factory: As printed: NOTE 1: Clean after every moto for dusty riding conditions.
TRANSMISSION OIL (NOTE 5): replace if the clutch discs and plates are replaced

Primary and gearbox

Factory

Factory: As printed: NOTE 5: Replace the transmission oil, if the clutch discs and plates are replaced.
FORK OIL (NOTE 3): replace after the first break-in ride

Front end

Factory

Factory: As printed: NOTE 3: Replace after the first break-in ride.

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.