How to Change the Oil in a 2020 KTM 350SXF: Step-By-Step Guide
Shop parts for a 2020 KTM 350SXF Dirt Bike.
Keeping your 2020 KTM 350SXF running strong requires regular oil changes. This robust how-to blog, proprietary to MotoSport.com, covers all tools needed, a detailed step-by-step process, and model-specific callouts for this dirt bike. With this guide, even first-timers can confidently perform this vital maintenance task at home.
Tools and Supplies Needed
- Oil drain pan
- Socket wrench set (for main drain bolt and oil filter cover – 13mm and 8mm)
- Pick tool (for removing oil screen)
- Contact cleaner (for cleaning the oil screen and messes)
- New oil filter (verify OEM part number matches your model year)
- Replacement oil (KTM recommends Motorex Cross Power 4T 10W/50 full synthetic or equivalent)
- Funnel
- Clean rags
- Torque wrench (torque values specified below)
- Gloves (recommended for cleanliness and safety)
Step-by-Step Oil Change Instructions
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Warm Up the Engine
Let the bike idle for a few minutes. This thins the oil, ensuring contaminants drain out more effectively.
Tip: Do this outside or in a well-ventilated area. -
Shut Off and Stand Bike Upright
Safely kill the engine and place the bike on a stand so it's as upright as possible, aiding a full drain. -
Remove the Skid Plate (if equipped)
Some models have a skid plate that covers the drain bolt. Use the appropriate tool to remove it. -
Drain the Engine Oil
- Use a 13mm socket to remove the main oil drain bolt located under the engine.
- Allow the oil to flow completely into the drain pan.
- The KTM 350SXF drain bolt is magnetic; inspect the magnet for any metal shavings, indicating internal wear. Clean the bolt thoroughly before reinstalling.
-
Remove and Clean the Oil Screen
- Locate the oil screen (strainer) – typically removed with a 13mm T-handle.
- If stubborn, use a pick tool to pull it out gently.
- Inspect and clean the screen with contact cleaner.
- Check for debris; small bits are normal, but chunks of metal can signal an internal problem.
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Remove and Replace the Oil Filter
- The oil filter cover has two 8mm bolts.
- Let residual oil drain from the filter cavity.
- Use pliers to remove the old oil filter or, for stuck filters, a special KTM filter tool.
- Check the filter number to ensure proper replacement.
- Pro tip: Pour a small amount of fresh oil into the new filter or pre-fill the filter cavity about 1/3 before installing the new filter for faster oil pressure on startup.
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Reinstall the Oil Screen and Main Drain Bolt
- Hand-thread first to avoid cross-threading.
- Torque the oil screen bolt to 7.4 Nm (~5.5 ft-lb) – do not overtighten.
- Main drain bolt torque: check your owner's manual but typically 15 Nm (~11 ft-lb).
- Always install fresh crush washers if supplied with your oil change kit.
-
Refill with Fresh Oil
- Remove the oil fill cap and position a clean funnel.
- Add exactly 1 liter of oil – do not overfill. The 2020 KTM 350SXF uses Motorex 10W-50 or equivalent full synthetic, per KTM's spec sheet.
- Reinstall the filler cap and clean off any spilled oil with contact cleaner.
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Prime and Start the Engine
- Hold the engine kill button and use the starter to crank the engine for a few seconds. This helps prime the system without immediate firing.
- Start the bike, let it idle 30–60 seconds, then shut down and check for leaks at all service points.
- Wipe up any oil messes immediately to prevent fire hazards.
-
Check the Oil Level
- With the bike upright, check the sight glass or dipstick (refer to owner's manual for exact method).
- Top off if necessary. Do not overfill; this can cause performance issues and oil leaks.
-
Dispose of Old Oil Responsibly
- Pour old oil into a sealable container and take it to a recycling center or auto parts retailer that accepts used oil.
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Record Your Service
- Maintain a log of your oil changes for warranty and resale purposes.
Specific Call-Outs for the 2020 KTM 350SXF
- The magnetic drain bolt is an important diagnostic tool—always check for unusual metal debris.
- The oil screen strainer is located on the left side bottom of the engine and is often stubborn to remove on its first service—use a suitable pick, and be patient.
- Never overtighten aluminum bolts; always use a torque wrench at the specified low values to avoid stripping.
- For a first (break-in) oil change, expect extra sediment in both the filter and on the magnet—this is normal for initial hours but should lessen over time.
- Refill volume is exactly 1L (for most uses; check owner's manual if adding accessories or racing components that affect oil capacity).
- Consider using genuine KTM or high-quality aftermarket filters to ensure proper oil pressure and filtration.
Quick Troubleshooting & Reminders
- If you see persistent metallic particles or chunks during oil changes, have your engine inspected by a qualified KTM technician.
- Use only the type and grade of oil recommended by KTM to preserve clutch and engine life.
- Always dispose of oil and filters responsibly – never dump in drains or outdoors.
Change your 2020 KTM 350SXF oil regularly and enjoy consistent performance on the track or trail. Visit MotoSport.com for OEM and premium aftermarket parts, tools, and support for all your dirt bike maintenance needs.
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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.