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Honda CRF450L (2018+) Maintenance Schedule and Service Intervals

Honda CRF450L Stock Image

This is the maintenance schedule and associated service intervals for the Honda CRF450L.

Honda took the dual-sport world by storm in 2018 with the road-legal CRF450L. The Honda CRF450L is based on the off-road CRF450R, but gives you the option of getting to the best riding trails by riding on asphalt roads, rather than carting your bike there in a truck.

The CRF450L is a lot more off-road-focused than the mild-mannered and easy-to-service CRF250L. This is reflected in its maintenance schedule which is quite intense. You basically have to service it every 1000 km or 600 miles, including changing the oil. Not for the faint of heart!

Already armed with features like a titanium fuel tank, six-speed transmission and LED lighting, the CRF450L got updated graphics for 2020.

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What you need to service the Honda CRF450L

To service the Honda CRF450L, you need the following general consumables.

ItemHonda CRF450L Spec
Fuel filterHonda’s part number for the fuel filter is 06160-MKE-A00.
Air cleanerThe air filter in the Honda CRF450L is cleanable!
CoolantThe engine is liquid cooled. Use Honda Coolant.
Engine oilHonda recommends SAE 10W-30 oil with “SG or higher, except oils labeled as energy conserving or resource conserving”, recommending Pro Honda GN4 oil or equivalent.
Oil filterHiflofiltro HF116 filter is a great replacement oil filter (better than K&N).
Brake fluidThe Honda requires DOT 4 brake fluid (as do most motorcycles). You may as well use Honda DOT 4.
GreaseA generic grease is invaluable for all external moving parts, like Valvoline moly-fortified grease.
ChainYou need to grease the chain often, especially when it gets dirty. Motul chain paste is quite well-liked.
Spark plugReplace the spark plug with either SILMAR9A-9S or SILMAR10A-9S. The spark plug needs to be gapped to 0.8-0.9mm — use a gapping tool.
Brake padsFront brake pads: EBC FA185R, rear brake pads; FA346R.
Honda CRF450L parts

Honda CRF450L Maintenance Schedule (on-road use)

Below is the maintenance schedule for the Honda CRF450L

Difficult levels (per Honda… but people tend to do their own maintenance):

  • * Should be serviced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified. Refer to the official Honda Service Manual.
  • ** In the interest of safety, we recommend these items be serviced only by your Honda dealer.

Maintenance Procedures legend:

  • I: inspect and clean, adjust, lubricate, or replace, if necessary
  • C: clean
  • A: adjust
  • L: lubricate
  • R: replace

Notes:

  1. At higher odometer readings, repeat at the frequency interval established here
  2. Service more frequently if the motorcycle is ridden in unusually wet or dusty areas
  3. Service more frequently when riding OFF-ROAD (see off-road maintenance table below)
  4. Replace every 2 years, or at indicated odometer interval, whichever comes first. Replacement requires mechanical skill. Refer to the official Honda service manual.
  5. California type only
mi x 10000.10.61.21.82433.620
km x 10000.1512345630
DifMonths14812162024Every
*FUEL LINEII
**FUEL FILTERRR
*THROTTLE OPERATIONII
*AIR CLEANER (Note 2)CCCCCC3 years, R
CRANKCASE BREATHER (Note 3)IIIIII
SPARK PLUG (SILMAR9A-9S)II
*VALVE CLEARANCEII
ENGINE OIL (Pro Honda GN4)RRRRRR
ENGINE OIL FILTER (HF116)RRRRRR
*DECOMPRESSOR SYSTEMII
**ENGINE IDLE SPEEDIIIIIII
**INTAKE/EXHAUST VALVER
**PISTON AND PISTON RINGSR
**PISTON PINR
**CRANKSHAFTR
**CRANKSHAFT BEARINGR
**TRANSMISSIONI
**CAM CHAIN TENSIONER LIFTERR
COOLANT (Note 6)II3 years
*COOLING SYSTEMIIIIIII
*SECONDARY AIR SUPPLY SYSTEMII
*EVAPORATIVE EMISSION CONTROL SYSTEM (Note 3)I
DRIVE CHAIN (Motul chain care kit) (Note 4)I,LI,LI,LI,LI,LI,LI,L300 mi (500 km)/ 3 mon): I, L
DRIVE CHAIN SLIDERIIIIIII
BRAKE FLUID (Honda DOT 4) (Note 6)IIIIIIR2 years: R
BRAKE PADS WEARIIIIIII
BRAKE SYSTEMIIIIIII
BRAKE LIGHT SWITCHIIIIIII
*HEADLIGHT AIMII
CLUTCH SYSTEMII
SIDE STANDII
*SUSPENSIONII
*SPARK ARRESTER (Note 5)1K mi (1.6K km)/ 100 hours: C
*NUTS, BOLTS, FASTENERS (Note 4)III
**WHEELS/TIRES (Note 4)IIIIIII
**STEERING HEAD BEARINGSIII
Honda CRF450L Maintenance Schedule

Maintenance Schedule — Off-road Use

All items should be checked before each off-road event. See your dealer unless you are mechanically qualified and have the proper tools.

This maintenance schedule is based upon average riding condition. Machine subjected to severe use require more frequent servicing.

Notes in this maintenance schedule:

  1. Clean after every use in dusty conditions.
  2. Replace every 2 years. Replacement requires mechanical skill.
  3. Replace after the first break-in ride.
  4. Inspect after the first break-in ride.
  5. Replace the engine oil, if the clutch discs and plates are replaced.
  6. Replace every year

Honda recommends servicing these items using an official Honda service manual for the CRF450L.

Every # Races148
Every # Hours3.51530
FUEL LINE (Note 6)IR
FUEL PUMP FILTER (Note 6)R
THROTTLE OPERATIONI
AIR FILTER (Note 1)C
CRANKCASE BREATHER (Note 4)I
SPARK PLUG (NGK SILMAR9A-9S) (Notes 3, 5)I
VALVE CLEARANCE/ DECOMPRESSOR SYSTEM (Note 3)I
ENGINE OIL (Pro Honda GN4)IR
ENGINE OIL FILTER (HF116)R
ENGINE IDLE SPEEDI
PISTON AND PISTON RINGSR
PISTON PINR
RADIATOR COOLANT (Honda Coolant) (Note 2)I
COOLING SYSTEMI
DRIVE CHAIN (Motul chain care kit)I, LR
DRIVE CHAIN SLIDERI
DRIVE CHAIN ROLLERI
DRIVE SPROCKETI
DRIVEN SPROCKETI
BRAKE FLUID (Honda DOT 4) (Note 2)I
BRAKE PADS WEARI
BRAKE SYSTEMI
CLUTCH SYSTEM (Note 5)I
CONTROL CABLESI, L
EXHAUST PIPE/MUFFLERI
SUSPENSIONI
SWINGARM/SHOCK LINKAGEL
FORK OIL (Note 3)R
NUTS, BOLTS, FASTENERSI
WHEELS/TIRESI
STEERING HEAD BEARINGSI
SIDE STANDI
Honda CRF450L — Maintenance schedule for off-road use

Tyre size and tyre pressure for the Honda CRF450L

Honda’s manual for the CRF450L recommends the following tyre sizes, types, and pressures.

TyreSizeBrand(s)Tyre pressure (cold)
Front80/100-21 M/C 51PIRC GP-21F22 psi (150 kPa , 1.50 kgf/cm2 )
Rear120/80-18 M/C 62PIRC GP-22R22 psi (150 kPa , 1.50 kgf/cm2 )
Tyres and tyre pressures

About the Honda CRF450L

The CRF450L is a road-legal dirt bike, just like the XR650R (where it’s road legal, anyway).

The dirtbike DNA is strong with the CRF450L. It leads off with a large, triple tree-mounted front fender that moves its weight from un-sprung to sprung in a bid to maximize the front suspension’s sensitivity.

The cyclops headlight buried a fly screen with race-style graphics and LED turn signals complete the forward lighting.

Honda tuned the CRF450L’s engine specifically for trail riding by increasing crankshaft inertia by 12 percent to maximize torque generation. As it stands, the engine cranks out 32 kW (42 hp) with 24 pound-feet of torque — plenty to make our European brothers and sisters jealous as their model is restricted to just over half this amount..

Engine power is coupled to the six-speed transmission by a special, light-pull clutch meant to increase fine power control and feathering with the extra benefit of reducing left-hand fatigue.

Since there’s a push-button starter, you won’t wear yourself out kicking it.

Manual for the Honda CRF450L

Honda CRF450L Maintenance Schedule Screenshot From Manual

The above maintenance schedule comes directly from the user’s manual for the Honda CRF450L.

You can download it from Honda here.

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