How to Change the Oil in a 2000 Kawasaki KLX300
Shop parts for a 2000 Kawasaki KLX300 Dirt Bike.
Regular oil changes are crucial to keeping your 2000 Kawasaki KLX300 running strong, whether you’re hitting the trails or commuting. This step-by-step guide is custom-built for your KLX300 and includes specific call-outs and tips for first-timers and seasoned riders alike. MotoSport.com is committed to helping you master routine dirt bike maintenance so you can stay focused on riding. Read on to learn how to complete a robust oil change on your KLX300.
Tools and Parts Needed
- 14mm socket and ratchet (for drain plug)
- 8mm socket (for oil filter cover bolts)
- Measuring cup (for oil, optional but handy)
- Funnel (optional, helps avoid spills)
- New oil filter (High Flow HF112 or Kawasaki OEM replacement)
- Fresh engine oil (Fully synthetic or semi-synthetic 10W40, 1.1-1.5 quarts)
- Clean rags or shop towels
- Drain pan
- Rubber gloves (optional, but recommended)
Prepping Your KLX300 for an Oil Change
- Warm up the engine. Let the bike idle for a few minutes, then let it cool slightly. This helps old oil drain out fully but avoid burns—oil should be warm, not hot.
- Stabilize the bike. Use a stand or center the motorcycle upright on level ground.
- Gather tools and parts. Lay out everything you'll need for easy access.
Step-by-Step Oil Change Process
-
Remove skid plate (if equipped):
Some KLX300s have a skid plate. Removing it makes access to the drain bolt easier, but it's not strictly necessary. Clean off any heavy dirt around the plug. -
Locate the oil drain plug:
The drain plug is on the lower left side of the engine, facing the ground and toward the back of the skid plate. Use the 14mm socket to loosen the drain bolt. Have your drain pan ready.
Tip: If the bolt is stubborn, use penetrating spray and a firm, controlled grip. -
Drain old oil:
Allow the oil to drain completely. Be patient—getting most of the old oil out is important for engine health. Inspect the drain bolt for metal shavings (a few tiny ones are normal). -
Remove the oil filter cover:
On the right side of the engine, remove the three 8mm bolts holding the oil filter cover. Carefully pull the cover away—there may be a little oil behind it.
Note: There’s a spring behind the filter—don’t lose it. -
Replace oil filter:
Remove the old filter, noting its orientation. Lightly grease the spring with a touch of oil or Vaseline to keep it in place when you install the new filter. Place the new filter in (open side facing out, rubber gasket toward engine), re-seat the spring, and bolt the cover back up evenly.
Don’t overtighten—just snug is perfect. -
Reinstall the oil drain plug:
Once draining is complete, reinstall the drain plug using your fingers first, then snug it up with the 14mm socket.
Caution: Don’t overtighten—thread damage here is a major hassle. -
Add fresh oil:
Unscrew the black oil fill cap (right side, near the top of the engine). Using a funnel, add 1.1 quarts (1.1L) of 10W40 oil.
Note: Kawasaki recommends 1.1 quarts for a simple change, up to 1.5 quarts if you get every drop out or do a full rebuild. -
Check the oil level:
Start the engine and let it idle for one minute. Shut off, wait two minutes, then check the sight glass (right side, bottom of the engine next to the brake pedal). The level should be between the upper and lower marks.
If needed, top up oil so the level is at–not beyond–the upper mark. -
Clean up:
Wipe down any spills, reinstall the skid plate if removed, and properly dispose of used oil and filter.
Model-Specific Notes and Tips for the 2000 KLX300
- Oil Capacity: For a basic filter change on this model, 1.1 quarts is the recommended amount. If you’ve done a full teardown, slightly more is needed but don’t overfill.
-
Drain Bolt Location: It’s behind the skid plate on the lower left–a 14mm socket is required.
Be careful not to strip the threads–just firm, not forced. -
Oil Filter: Use HF112 or Kawasaki OEM part. The filter orientation matters: open end faces out, rubber gasket sits against the engine.
Always lube the filter O-ring and confirm the spring is seated correctly. - Sight Glass Reading: The engine must be cool and bike upright. If the oil is low, add small amounts at a time; too much is as bad as too little.
- Interval: Change oil and filter every 10-15 hours of hard riding, or at least once per season for casual riders.
- First Oil Change: If it’s your first change since a top-end rebuild or break-in, do it early—metal particles can accumulate faster in new or rebuilt engines.
Final Checks
- Double-check all bolts for proper tightness
- Look for leaks around the drain plug and filter
- Start the bike and listen for abnormal noises
- Wipe down your work area and log the date/mileage for your records
Your 2000 Kawasaki KLX300 is now ready for more miles and epic adventures. For more expert DIY guides, parts, and riding essentials, trust MotoSport.com—the #1 source for dirt bike riders everywhere.
Related Shopping Categories
Shop Motor Oil for a 2000 Kawasaki KLX300 Dirt Bike.
Shop Oil Filters for a 2000 Kawasaki KLX300 Dirt Bike.
Shop Oil Drain Pans for a 2000 Kawasaki KLX300 Dirt Bike.
Shop Tools for a 2000 Kawasaki KLX300 Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2000 Kawasaki KLX300 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.