How to Change the Oil in a 1998 Honda XR650L: Step-by-Step Guide

Shop parts for a 1998 Honda XR650L Dirt Bike.

Proprietary to MotoSport.com

Changing the oil in your 1998 Honda XR650L is crucial to maintain engine health & longevity. This guide walks you through the entire process, specific to the XR650L platform, with special notes, tips, and all the tools required for a successful and clean oil change.

Tools & Materials Needed

  • Premium 10W-40 motorcycle oil (2.0 to 2.6 liters; consult owner's manual for precise amount)
  • OEM or high-quality oil filter
  • New crush washer for drain bolt (optional but recommended)
  • 8mm, 10mm, 12mm, and 17mm sockets and/or wrenches
  • 17mm wrench (for frame drain plug, if applicable)
  • Oil catch pan
  • Funnel
  • Oil filter wrench
  • Shop rags or paper towels
  • Rubber gloves
  • Contact cleaner (to remove oil splashes)
  • Magnetic drain bolts (optional) for added protection

Step-by-Step Oil Change Procedure

  1. Preparation:
    • Park your XR650L on a level surface with the side stand down and engine off.
    • Allow the bike to fully cool if it was recently running to prevent burns.
    • Gather all your tools and supplies and keep workspace clean and ventilated.
  2. Warm Up the Engine:
    • Start the engine and let it idle for a few minutes. This thins the oil, allowing it to drain more completely.
    • Turn the engine off and let the bike sit for a couple of minutes.
  3. Remove Skid Plate (if installed):
    • If your 1998 XR650L has a skid plate or crash bars, remove them for access to the drain plugs.
  4. Loosen the Oil Dipstick/Filler Cap:
    • Unscrew the oil fill dipstick to relieve vacuum. This ensures oil flows smoothly during draining.
  5. Drain the Engine Oil:
    • Locate the main drain plug under the engine (typically 12mm or 17mm bolt). Place the oil catch pan below.
    • Remove the drain plug and crush washer. Allow oil to fully drain.
    • On XR650L models, you may also have to remove a drain bolt on the oil reservoir in the frame.
    • If unsure, consult your service manual for the precise location of both plugs.
  6. Clean and Inspect:
    • Wipe the drain plugs. Check the old oil and crush washer for metal particles or debris (signs of engine wear).
    • Install a new magnetic drain bolt for extra engine protection, if desired.
  7. Replace and Tighten Drain Bolt(s):
    • Fit a new crush washer on the drain plug. Reinstall plug and carefully tighten to manufacturer’s torque spec (do not overtighten.).
  8. Replace the Oil Filter:
    • Locate the oil filter cover on the side of the engine (secured by 8mm or 10mm bolts).
    • Remove cover and old oil filter using the filter wrench. Discard old filter and rubber O-ring.
    • Wipe mating surfaces clean. Install new O-ring (if supplied) and new oil filter in correct orientation.
    • Reinstall cover and bolts–tighten evenly.
  9. Clean the Oil Screen (Every 3–4 Changes or During Break-In):
    • The XR650L features an internal oil screen. It should be removed and cleaned at least every 3–4 oil changes or during early break-in periods.
    • Refer to the service manual for location and cleaning procedure. Missing this step is a common oversight.
  10. Add Fresh Oil:
    • Insert funnel into oil filler neck.
    • Add approximately 2.0–2.6 liters of 10W-40 motorcycle oil. For best performance, use brands recommended for the XR650L such as Honda GN4, Mobil 1, Castrol, or Motul.
    • Replace dipstick.
  11. Check Oil Level and Top Off:
    • Start the engine and let it idle for one minute. Turn it off and wait a minute for oil to settle.
    • Remove dipstick, wipe it clean, insert (do not screw in), check level. Add oil slowly if needed until the level is at the top mark.
  12. Dispose of Old Oil Responsibly:
    • Transfer used oil to a sealed container and bring it to an authorized recycling center.
    • Do not pour oil on the ground or in household drains.
  13. Reinstall Skid Plate/Crash Bars:
    • If removed, reinstall these components securely.
  14. Final Inspection:
    • Check for leaks at drain bolts and oil filter cover.
    • Clean any spilled oil with contact cleaner and rags to prevent dirt or fire hazards.

Specific Call-Outs for 1998 Honda XR650L Owners

  • Oil Capacity: The total system usually takes 2.0 to 2.6 liters after a full oil and filter change. Overfilling may cause smoky exhaust or oil leaks, so fill cautiously and check at each stage.
  • Recommended Oil: Always use high-quality 10W-40 motorcycle oil. Avoid generic car oils, which do not protect clutch and transmission components well.
  • Oil Change Interval: For best engine health, change oil every 2,000–3,000 miles or at least once per year, whichever comes first.
  • Filter Screen Maintenance: Don’t neglect the oil screen: it collects debris the filter does not catch and will clog with neglect. Clean as described above.
  • Crush Washers: Replace the crush washer each change to prevent seepage and leaks–old ones may not seal properly.
  • Magnetic Drain Bolts: These are a recommended upgrade to collect fine metallic particles and provide early warning signs of engine wear.
  • Dipstick Reading: Check oil level with the dipstick resting on the threads, not screwed in fully, for an accurate reading.
  • Disposal: Used oil and filters must never be discarded in household trash; protect the environment by recycling.

Keep Your XR650L in Top Shape

By following these instructions and maintaining a consistent schedule, your 1998 Honda XR650L will deliver reliable performance for years to come. If you have further questions or need OEM parts and tools, MotoSport.com is always here to help you ride farther and ride smarter.

Related Shopping Categories

Shop Motor Oil for a 1998 Honda XR650L Dirt Bike.

Shop Oil Filters for a 1998 Honda XR650L Dirt Bike.

Shop Oil Drain Pans for a 1998 Honda XR650L Dirt Bike.

Shop Tools for a 1998 Honda XR650L Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 1998 Honda XR650L Dirt Bike.

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.