How to Change the Oil in a 2018 Husqvarna TC65 – MotoSport.com Exclusive Guide
Shop parts for a 2018 Husqvarna TC65 Dirt Bike.
Regular oil changes are one of the most critical maintenance tasks to keep your 2018 Husqvarna TC65 dirt bike running at its best. Below, you'll find a detailed, step-by-step process proprietary to MotoSport.com for performing a robust oil change on your TC65. We've included all model-specific notes, tool lists, and tips so you can confidently complete the job and maximize your engine's lifespan.
Tools and Supplies Needed
- Socket wrench set – for removing the drain bolt
- Drain pan – to catch the old oil
- Oil funnel – for controlled pouring into the bike
- Measuring cup – for accurate oil amount
- Clean rags or shop towels – for spill cleanup and wiping parts
- Replacement O-ring (optional but recommended)
- Contact cleaner or brake cleaner (optional, for cleaning surfaces)
- High-quality 4-stroke motorcycle engine oil, 15W-50 (use 500ml for the TC65)
Preparation Steps
- Warm up the engine for a couple of minutes. This helps the oil circulate and thin out, allowing it to drain more completely.
(Never perform an oil change on a hot or just-ridden engine to avoid burns.) - Turn off the engine and set the bike upright on a stand or the kickstand (level ground only).
- Clean the area around the oil filler cap and drain bolt to prevent dirt from entering the engine during the oil change.
Avoiding contamination is especially important for high-performance youth bikes like the TC65.
Step-by-Step Oil Change Instructions
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Remove the Oil Filler Cap:
Locate the oil filler cap on the right side of your engine labeled "OIL." Carefully unscrew the cap to allow air to flow, enabling oil to drain faster.
Inspect the O-ring on the cap for wear, and replace it if it looks damaged or flattened. -
Position Your Drain Pan:
Slide an oil catch pan beneath the engine, directly under the drain bolt. -
Remove the Oil Drain Bolt:
Identify the oil drain bolt underneath the engine. Using the appropriately sized socket, loosen and remove the bolt.
Be ready for the oil to flow out quickly once undone. Hold onto the bolt and attached O-ring; inspect the O-ring for damage—replace if necessary for a proper seal. -
Allow Oil to Drain Completely:
Let the oil drip until it slows to an occasional drop—it is critical for not leaving old oil behind.
Wobble the bike gently upright and side to side to help residual oil flow out. -
Reinstall Drain Bolt (with New O-ring if available):
Wipe the area clean and reinstall the drain bolt and O-ring. Tighten to manufacturer specs (typically "snug," but always confirm in your owner’s manual for the correct torque). -
Pour in New Oil:
Insert your funnel into the oil fill hole. Pour in 500ml of quality 15W-50 4-stroke motorcycle oil, as recommended for the TC65.
Double-check that you’re using the exact amount and type—65cc 2-strokes like the TC65 have small tolerances for mistakes. -
Replace the Oil Filler Cap:
Reinstall the cap snugly. Wipe away any spilled oil. -
Start the Engine and Check Levels:
Start the engine and let it idle for about 30 seconds, then turn it off.
Wait a minute and check for leaks around the drain bolt and filler cap.
Remove the filler cap and check the oil level against the manufacturer’s recommended range. Top off if necessary, but never overfill. -
Dispose of Old Oil Responsibly:
Pour the used oil into a sealable container and take it to a recycling center or auto parts store.
Never pour oil down a drain or into the soil.
2018 Husqvarna TC65-Specific Call-Outs
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The TC65 uses a single oil drain bolt under the engine and does not require an oil filter change—it uses a simple mesh screen that can be cleaned periodically but doesn’t have a replaceable cartridge.
Check your owner's manual for mesh screen location and service intervals. - Use only motorcycle-specific, high-quality 15W-50 oil, as automotive oils may not provide suitable clutch protection or performance for this engine.
- Always measure exactly 500ml oil for the TC65. Overfilling can cause pressure issues and leaks, underfilling can quickly damage the top end.
- Inspect the area for dirt and debris, especially since youth bikes like the TC65 are commonly used in muddy conditions, which can accelerate contamination during oil changes. Thoroughly wipe down the area before opening the engine.
Proprietary MotoSport.com Pro Tips
- Always keep a spare drain bolt O-ring on hand—these are cheap but essential for a proper seal and preventing leaks.
- Mark your oil changes on a maintenance log or sticker—staying ahead of schedule prevents catastrophic engine damage and helps retain the value of your TC65.
- Run the bike gently for a few minutes after an oil change, then double check for leaks or seepage—especially if your bike is raced or ridden aggressively.
- For frequent racers, MotoSport.com recommends changing oil every 7-10 hours of ride time, especially in harsh conditions or after muddy rides.
Maintaining your 2018 Husqvarna TC65 with regular oil changes using the right process and quality MotoSport.com-recommended supplies ensures your bike delivers peak performance—a must for young riders and competitive racers alike.
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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.