How to Change the Oil in a 2017 KTM 350XCF: The Definitive MotoSport.com Guide

Shop parts for a 2017 KTM 350XCF Dirt Bike.

Changing the oil in your 2017 KTM 350XCF is essential maintenance that helps keep your bike performing at its best and extends the life of your engine. This step-by-step guide outlines exactly what you need, how to perform the service, and the critical call-outs specific to your bike. Let's get started.

Tools & Supplies Needed

  • Socket set (including 13mm and 8mm)
  • T-Handle wrench or ratchet
  • Torque wrench (capable of low Nm settings, around 8 Nm/7 ft-lb)
  • Oil drain pan
  • Paper or shop towels
  • Funnel (for clean filling)
  • Contact or brake cleaner (for cleaning up spills)
  • New oil filter (compatible with KTM 350 – generally HF652 or equivalent)
  • Replacement crush washer (recommended, part of oil change kit)
  • 1 liter premium 10W-50 full synthetic four-stroke motorcycle oil
  • Measuring cup (to ensure precise oil volume)

Step-by-Step Oil Change Instructions

  1. Warm Up Your Engine
    • Start the bike and let it run for 3-5 minutes. Warming the oil helps it drain more thoroughly.
    • Turn the engine off and let it cool just enough to avoid burns.
  2. Prepare Your Work Area
    • Set your 2017 KTM 350XCF on a stand so the bike remains upright and level.
    • Place the oil drain pan underneath the engine's drain plugs.
  3. Remove the Drain Plugs
    • There are two oil drainage points:
      • The main drain bolt located underneath the engine.
      • The oil screen bolt (on the side or near the bottom of the engine, depending on model year).
    • Use your socket/ratchet to carefully remove both.
    • Allow all oil to drain into the pan. Inspect the screen for debris or metal shavings; clean it thoroughly.
  4. Replace Oil Filter and Clean Oil Screen
    • Locate and remove the oil filter cover (usually 8mm bolts).
    • Remove and discard the old oil filter.
    • Carefully wipe out the filter cavity and oil filter cover.
    • Inspect O-rings and gaskets, replace if necessary.
    • Specific call-out for 350XCF: Many 350s call for filling the new oil filter cavity about 1/3 full with fresh oil before inserting the new filter. This helps reduce engine wear during initial start-up

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    • Insert the new filter and reinstall the cap. Torque the bolts to 7-8 Nm (hand snug with a gentle twist if you don't have a low-setting torque wrench)

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  5. Reinstall Drain Plugs and Oil Screen
    • Ensure you install a new crush washer on each drain bolt for a sure seal.
    • Tighten the main oil drain bolts to manufacturer's specified torque (do not overtighten.).
    • Typical torque: 10 Nm (≈7 ft-lb) for the main drain plug; 7-8 Nm on the oil filter cover bolts

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  6. Add New Oil
    • Remove the oil fill plug (located on the clutch cover).
    • With the engine upright, use a funnel to pour in exactly 1 liter of 10W-50 full synthetic motorcycle oil for the 2017 KTM 350XCF

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    • Replace the oil fill cap securely.
  7. Check Oil Level
    • With the bike upright, view the oil level through the sight glass. Oil should be at, or just below, the center dot in the window

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    • Top up a few milliliters if needed, being careful not to overfill.
  8. Final Checks and Start Up
    • Clean off any spilled oil with contact/brake cleaner and a towel.
    • Hold in the kill switch and press the starter button for a couple seconds before you actually start the engine—this primes the oil system.
    • Start the bike, let it idle for 1-2 minutes, and check for any leaks around drain plugs, oil filter cover, and oil fill cap.
    • Re-check the oil level once more when the bike is level after it has sat for a minute.

Owner Call-Outs – 2017 KTM 350XCF

  • Oil Capacity: Exact refill capacity is 1 liter when doing both filter and oil replacement

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  • Oil Change Interval: KTM recommends oil changes every 15 hours for this engine, but aggressive riding may require more frequent changes

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  • Crush Washers: Replace the crush washer with each oil change to prevent leaks.
  • Oil Filter Primer: For best cold start protection, fill the filter cavity about 1/3 full of new oil before installing the filter

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  • Torque Settings: Low torque values are required—do not overtighten drain or oil filter cover bolts (max 10 Nm).
  • Sight Glass: Use the sight glass on the clutch cover to verify oil level. Check after the bike rests level for 1-2 minutes.

Pro Tips from MotoSport.com

  • Always use high-quality 10W-50 full synthetic motorcycle oil for the KTM 350 four-stroke platform.
  • Keep a logging app or notebook to record hours and oil changes for your maintenance tracking.
  • Buy an oil change kit that includes filter and crush washers to save time and ensure complete jobs.

For KTM 350XCF owners, following these steps precisely will ensure a smooth, long-lasting engine and trouble-free riding. Trust MotoSport.com for your parts and maintenance advice.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.