KTM 890 Duke (2021+) Maintenance Schedule and Service Intervals
This is the maintenance schedule and service intervals for the KTM 890 Duke (non-R), sometimes called the Duke 890, announced in early 2021 for the same model year.
The KTM 890 Duke is part of the 890 series of motorcycles. It shares a platform with the 890 Duke R, though the base model 890 Duke came slightly afterwards.
The KTM 890 Duke is based on the same 889cc DOHC liquid-cooled parallel twin as in the 890 Duke R, but has slightly lower power output, as well as lower-spec suspension, brakes, and tyres. Plus, it has a more relaxed rider position. It’s also cheaper.
All in all, the 890 Duke is a friendly and yet fiery alternative to the KTM 890 Duke R.
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What you need to service your KTM 890 Duke
Apart from basic motorcycle maintenance tools, here are a few spares, fluids, and consumables that will help you service your KTM Duke motorcycle.
KTM recommends using Motorex items. Motorex is a Swiss brand.
| Part | KTM 890 Duke spec |
|---|---|
| Engine oil | The manual specifies Motorex Power Synthetic 4T 10W/50, or another SAE 10W/50 fully synthetic engine oil that meets JASO T903 MA2 spec. |
| Oil filter | Use part number 61338015200 or K&N part KN-650, a popular equivalent. (This oil filter is used in most KTM adventure bikes.) |
| Fork oil | The manual recommends SAE 5 fork oil, preferably Motorex 5W Racing Fork Oil. |
| Brake fluid | The manual requires DOT 4 or DOT 5.1, recommending Castrol DOT 4 or Motorex DOT 5.1 brake fluid. |
| Air filter | Part number for the air filter is 64106015000 and it’s highly effective (and not often changed). |
| Coolant | KTM recommends Motorex Coolant M3.0 or other “high-grade, silicate-free coolant with corrosion inhibitors”. |
| Spark plug | Use an NGK LMAR9AI-10 to change spark plugs. |
| Chain maintenance | Maintain the chain with a Motorex chain cleaner and Motorex chain lube. |
Maintenance Schedule for the KTM 890 Duke
Below is the maintenance schedule for the KTM 890 Duke, adapted from the manual.
Notes:
- Maintenance schedule intervals for the KTM 890 Duke are 15000 km (9300 mi), with a major service (valve service & new plugs) every two intervals.
- After the end of the service schedule, keep repeating it in this pattern.
- The maintenance schedule in the manual is broken up into two sections — required maintenance and recommended maintenance (but you should do both).
Required maintenance
| miles x 1000 | 0.62 | 9 | 18.6 | |
|---|---|---|---|---|
| km x 1000 | 1 | 15 | 30 | Every |
| [Dealer] Read out the fault memory using the KTM diagnostics tool. | ✓ | ✓ | ✓ | Year |
| [Dealer] Program the shift shaft sensor. | ✓ | ✓ | ✓ | Year |
| Check that the electrical system is functioning properly. | ✓ | ✓ | ✓ | Year |
| Change the engine oil and the oil filter, clean the oil screens. | ✓ | ✓ | ✓ | Year |
| Check the front brake linings. | ✓ | ✓ | ✓ | Year |
| Check the rear brake linings. | ✓ | ✓ | ✓ | Year |
| Check the brake discs. | ✓ | ✓ | ✓ | Year |
| Check the brake lines for damage and leakage | ✓ | ✓ | ✓ | Year |
| Check the front brake fluid level. | ✓ | ✓ | ✓ | Year |
| Check the rear brake fluid level. | ✓ | ✓ | ✓ | Year |
| Change the front brake fluid. (Castrol DOT 4) | 2 years | |||
| Change the rear brake fluid. (Castrol DOT 4) | 2 years | |||
| Check the free travel of the clutch lever | ✓ | ✓ | ✓ | Year |
| Check the free travel of the foot brake lever | ✓ | ✓ | ✓ | Year |
| Check the shock absorber and fork for leaks. Perform service as needed and depending on how the vehicle is used. | ✓ | ✓ | ✓ | Year |
| Clean the dust boots of the fork legs | ✓ | ✓ | ||
| Check the steering head bearing for play. | ✓ | ✓ | ✓ | Year |
| Check the tire condition | ✓ | ✓ | ✓ | Year |
| Check tire pressure | ✓ | ✓ | ✓ | Year |
| Check the chain, rear sprocket, engine sprocket, and chain guide. (Manage with Motul chain care kit) | ✓ | ✓ | Year | |
| Check the chain tension | ✓ | ✓ | ✓ | Year |
| Change the spark plugs. (NGK LMAR9AI-10) | ✓ | |||
| Check the valve clearance. | ✓ | |||
| Check the antifreeze and coolant level. | ✓ | ✓ | ✓ | Year |
| Check the cables for damage and routing without kinks | ✓ | ✓ | Year | |
| Change the air filter, clean the air filter box. | ✓ | ✓ | ||
| Check the fuel pressure and the absorbing elements of the fuel tank bracket. | ✓ | ✓ | Year | |
| Check the headlight setting. | ✓ | ✓ | ✓ | |
| Check that the radiator fan is functioning properly. | ✓ | ✓ | ✓ | Year |
| Final check: Check the vehicle is roadworthy and take a test ride. | ✓ | ✓ | ✓ | Year |
| [Dealer] Read out the error memory after the test ride using the KTM diagnostics tool. | ✓ | ✓ | ✓ | Year |
| [Dealer] Set the service interval display. | ✓ | ✓ | ✓ | Year |
| [Dealer] Make a service entry in KTMDealer.net | ✓ | ✓ | ✓ | Year |
Recommended maintenance
| miles x 1000 | 0.62 | 9.3 | 18.6 | |
|---|---|---|---|---|
| km x 1000 | 1 | 15 | 30 | Every |
| Check the frame | ✓ | |||
| Check the link fork | ✓ | |||
| Check/clean the oil nozzle for clutch lubrication | ✓ | ✓ | ✓ | |
| Check the swingarm bearing for play | ✓ | ✓ | ||
| Check the wheel bearing for play | ✓ | ✓ | ||
| Empty the drainage hoses | ✓ | ✓ | ✓ | Year |
| Check all hoses (fuel, coolant, bleeder, drainage etc.) and sleeves for cracking, leaks, and incorrect routing | ✓ | ✓ | Year | |
| Grease all moving parts (e.g. side stand, hand lever, chain) and check for smooth operation | ✓ | ✓ | ✓ | Year |
| Check the tightness of the safety-relevant screws and nuts which are easily accessible. | ✓ | ✓ | ✓ | Year |
| Change the coolant | 4 years |
Wheels and Tyres for the KTM 890 Duke
Below are tyre sizes and recommended pressures for the KTM 890 Duke. It ships with Continental ContiRoad tyres stock.
These are specifications recommended for specific tyres and assumed weights; adjust them based on your own weight, riding conditions, and so on.
| Wheel | Tyre size | Tyre pressure (cold) |
|---|---|---|
| Front | 120/70 ZR 17 M/C (58W) TL (J) | 33 psi (2.3 bar) |
| Back | 180/55 ZR 17 M/C (73W) TL (G) | Solo: 36 psi (2.5 bar) With passenger/luggage: 38 psi (2.6 bar) |
About the KTM 890 Duke
Say KTM 890 Duke and people expect to hear an “R” on the end, but the 890 Duke is just that — the base model of the 890 Duke R, with no R.
The KTM 890 Duke replaces the KTM 790 Duke, which was already a game-changer for KTM (two pistons in a Duke, rather than just one!). But the 890 takes it a step further.
The 890 Duke continues the same spirit of the “middleweight” duke motorcycles: an alternative the blistering Super Duke R, in a lighter but still very exciting package. The Duke range are not upright tourers, but nor are they committed sportbikes — like the Speed Triple and Street Triple from Triumph, they’re sportbikes with handlebars.
The 890 Duke is a slightly down-spec, more affable, and cheaper version of the 890 Duke R. But those considering the savings needn’t worry too much — despite the lower spec, the base model Duke is still a very capable machine.
Here’s what’s changed with the 890 Duke (base model) compared to the R:
- Peak power: The non-R makes 86 kW (115 hp) @ 10500 rpm, vs the 89 kW (119 hp) @ 9250 rpm
- Peak torque: 92 Nm (68 lb-ft) @ 8000 rpm, vs 99 Nm (79 lb-ft) @ 7750 rpm
- Suspension: WP Apex suspension front and rear, with only preload adjustability in the rear. The 890 Duke R has WP Apex Pro suspension that’s fully adjustable.
- KTM engineered front brakes (vs. Brembo Stylema on the R) on 300mm calipers (20mm smaller) and rear brake
- Continental ContiRoad tyres, vs. Michelin Power Cup 2 tyres on the R
- Lower ground clearance/lean angle and seat height
- Slightly more relaxed rider triangle
From the other perspective, the higher-spec 890 Duke R seems like a bargain for only US$1000 extra considering the higher grade of components.
Manual for the KTM 890 Duke (base model)
The above maintenance schedule comes from the user’s manual for the KTM 890 Duke.
The 890 Duke’s manual is for some reason in portrait (vertical) format, different to most other KTM manuals…
You can get the user manual directly from KTM’s website.
