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Honda CRF300L & CRF300 Rally (2021+) Maintenance Schedule and Service Intervals

Honda CRF 300 Rally diagonal front

This is the maintenance schedule and associated service intervals for the Honda CRF300L and CRF300 Rally, an update on the long-standing Honda CRF250L (which actually has near-identical maintenance when you look at the manual for the last year it was sold, 2020).

The Honda CRF300L is a dual-sport motorcycle, part of the Honda CRF series, manufactured by Honda for their global market. The CRF300L was first released for the 2021 model year. It comes in two versions:

  • Honda CRF300L (base model): Dirt-oriented
  • Honda CRF300 Rally: Touring-oriented with a larger tank, windscreen, hand guards, design changes, and a few other accessories.

But both models share the same basis — longer-stroke 286cc fuel-injected single that makes 20 kW (27 hp), with a shorter six-speed transmission (an improvement on the CRF250L’s longer gears) and chain drive.

Honda CRF300 and CRF300 Rally together

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What you need to service your Honda CRF300L and CRF300 Rally

Maintaining a fuel-injected dual-sport or adventure bike is part of the ownership experience! You’re going to get the chain dirty, the air cleaner clogged up, and put the suspension and pivot points through abuse.

Aside from regular motorcycle maintenance tools, here are a few other things you’ll need to keep your CRF300L in spec.

PartHonda CRF300L and CRF300 Rally
OilHonda recommends SAE 10W-30, JASO T 903 standard MA (or API classification SG or higher) oil such as Pro Honda GN4 10W-30. Use a torque wrench to tighten the bolt to 24 Nm (18 lb-ft).
Oil filterYou can use Hiflofiltro HF112 for the oil filter as a drop-in replacement. Honda OEM is 15410-KYJ-902.
Air filter You can use the reusable DNA air filter, whose part number is P-H3E21-01. The Honda OEM part number is 17220-K1T-E10
Spark plugsUse NGK spark plug part SIMR8A9.
Chain maintenanceTo maintain your chain, Motul chain paste is quite well-liked. There’s also the Motul chain care kit which is affordable and good.
Brake fluidYou can use any fluid, but Honda recommends Honda DOT 4.
Brake pads (front)Part number for the front pads is 06451-KZZ-902. EBC front brake pads have part number FA465R.
Brake pads (rear)Part number for the rear pads is 06435-KZZ-902. EBC rear brake pads have part number FA629R.
CoolantUse Honda Coolant, which is a long-life coolant with rust inhibitors.
GreaseStock up on lithium soap-based grease and silicon grease to keep pivots and moving parts lubricated and protected.
Honda CRF300L (inc. Rally) maintenance parts

Honda CRF300 Maintenance Schedule

Below is the maintenance schedule for the Honda CRF300L and CRF300 Rally

Honda indicates suggested difficulty levels for some maintenance items:

  • X: “Should be serviced by your Honda dealer, unless you have the proper tools and service data and are mechanically qualified.”
  • XX: Honda says “In the interest of safety, we recommend these items be serviced only by your Honda dealer.”

Maintenance Procedures:

  • I: inspect and clean, adjust, lubricate, or replace, if necessary
  • C: clean
  • L: lubricate
  • R: replace
  • Honda also marked changing brake fluid and radiator coolant as “requiring mechanical skill” but… does it?


  • At higher odometer readings, repeat at the frequency interval established here
  • [RD] Service more frequently if the motorcycle is ridden in unusually wet or dusty areas
  • [RFT] Service more frequently when riding in rain or at full throttle.
  • [OR] Service more frequently when riding off-road
x 1000 mi0.64812162024
Difx 1000 km16.412.819.225.63238.4Every
XFuel LineIII
XThrottle OperationIII
Air Cleaner [RD] (K&N HA-2513)RR
Crankcase Breather [RFT]CCCCCC
Spark Plug (NGK SIMR8A9)* 16K mi (25K km): I
* 32K mi (50K km): R
XValve ClearanceI
Engine Oil (Pro Honda GN4)RRRR1 Year: R
Engine Oil Filter (HF112)RR
XEngine Idle SpeedIII
Radiator Coolant (Honda Coolant)III3 Years: R
XCooling SystemIII
XSecondary Air Supply SystemI
XEvaporative Emission Control System (CA only)I
Drive Chain [OR] (Motul Chain Paste)Every 600 mi (1000 km): I L
Drive Chain SliderIIIIII
Brake Fluid (Honda DOT 4)IIIIII2 Years: R
Brake Pad WearIIIIII
Brake SystemIII
Brake Light SwitchIII
Headlight AimIII
Clutch SystemIIIIII
Side StandIII
XSpark Arrester (if fitted — USA only)CCCCCC
XNuts, Bolts, Fasteners [OR]III
XWheels/Tires [OR]IIIIII
XSteering Head BearingsIII
Honda CRF300L maintenance schedule

Tyre size and tyre pressure for the Honda CRF300L

The Honda manual refers to the following tyre sizes, recommended tyres, and tyre pressures (when cold).

These are tubed tyres.

TyreSizeStock brandTyre pressure
Front80/100-21 M/C (51P)IRC GP-21F22 psi (150 kPa , 1.50 kgf/cm2 )
Rear120/80-18M/C (62P)IRC GP-22R22 psi (150 kPa , 1.50 kgf/cm2 )
Tyres and tyre pressures

About the Honda CRF300L and CRF300 Rally

The Honda CRF250L was already really well-liked as a lightweight adventure travel bike, but the CRF300L and CRF300 Rally was a major update.

At its core, it’s the same kind of bike: a very simple but modern single-cylinder lightweight adventure travel bike. This is a bike that’s cheap to own and maintain, easy to fix, and capable of going almost anywhere. Other big-bore adventure bikes will get totally stuck in places like rocky crossings that the CRF300L can scamper up without too much trouble.

But the CRF300L is a significant update, anyway:

  • New longer-stroke 286cc engine — making 10% more peak power, and 18% more peak torque (and more torque across the whole powerband)
  • Lighter kerb weight — the CRF300L is 4kg lighter
  • Improved frame — longer-travel suspension, more ground clearance, improved steering geometry and riding position
  • New LCD for both models
  • Rally: 2.7L extra fuel capacity (basically another 100 km!), plus improved long-range comfort options.
Honda CRF300 engine

Both the CRF300L and CRF300 Rally get shorter ratios for the first five gears, even further amplifying the increased torque of the bigger engine. On the other hand, 6th gear is distinctly taller, for relaxed highway cruising. The best of both worlds!

Manual for the Honda CRF300L

Honda CRF300L maintenance schedule

The above maintenance schedule comes directly from the user’s manual for the 2021 Honda CRF300 Rally. It’s identical for the CRF300L.

You can download it from Honda’s website here.

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