How to Change the Oil in a 2009 Yamaha TTR50 – Proprietary MotoSport.com Guide
Shop parts for a 2009 Yamaha TTR50 Dirt Bike.
Maintaining the engine oil in your 2009 Yamaha TTR50 is critical for the longevity and smooth performance of your dirt bike. This guide walks you through each step, highlights model-specific notes, and lists the tools you'll need for an efficient, mess-free oil change. Remember, regular oil changes not only protect your engine but also ensure every ride is as good as the first.
Tools & Materials Needed
- 10W-40 engine oil (YAMALUBE or another dirt bike-specific oil)
- Oil drain pan
- 17mm socket and ratchet (some sources note a 12mm bolt, so double-check yours before starting)
- Torque wrench (spec: 15 lb-ft for drain plug)
- Narrow funnel
- New crush washer for the drain bolt (recommended)
- Shop rags for cleanup
- Gloves to protect your hands (recommended)
Specific TTR50 Call-outs
- Only use motorcycle-specific oil (no automobile oils; avoid friction-reducing additives that may cause clutch slippage)
- Oil capacity for the 2009 TTR50 is approximately 1.06 quarts (check dipstick after one quart, add more only if necessary)
- Always check and change the crush washer on the drain bolt for best results
- Check oil level with the bike upright on a level surface; leaning can give a false reading
- Warm up the engine before draining for optimal oil flow and debris removal
Step-by-Step Oil Change Instructions
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Warm Up the Engine
- Start the TTR50 and let it idle for five minutes. Warm oil drains faster and carries away more contaminants.
- Turn off the engine and let it cool for 2-3 minutes to avoid burns.
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Prep the Work Area
- Place the bike upright on a level stretch. The kickstand can stay down, but keeping the bike as level as possible provides an accurate oil reading later.
- Slide your oil drain pan under the engine.
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Drain the Old Oil
- Using your 17mm socket (verify if your model uses 12mm), loosen and remove the oil drain bolt found on the bottom left side of the engine casing. Be cautious—oil and engine parts may still be hot.
- If the washer is damaged or overly compressed, replace it with a new one to prevent leaks.
- Allow all the oil to fully drain into the pan—wait a few minutes for residual drops.
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Reinstall the Drain Plug
- Once draining stops, wipe the bolt and washer clean. Place the crush washer on the bolt if you replaced or removed it.
- Thread the drain bolt in by hand, then use a torque wrench to tighten it to 15 lb-ft. Do not overtighten; this risks stripping the aluminum threads.
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Refill with Fresh Oil
- Remove the oil filler cap/dipstick (right side near footpeg). Insert a narrow funnel into the hole.
- Pour in 1 quart of 10W-40 motorcycle-specific oil. Stop, then check the oil level with the dipstick before adding more. The 2009 TTR50's spec is 1.06 quarts, but some oil remains trapped inside and adding extra can easily overfill the small crankcase.
- To check: Wipe and reinsert the dipstick fully (without screwing it in); remove and read the oil level. It should reach between the min and max marks.
- Add more oil in small increments, if needed, to hit the correct level.
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Final Checks and Clean Up
- With the dipstick in place and the filler cap secured, start the bike and let it idle for 1-2 minutes. Turn off. Wait a few minutes for oil to settle, recheck the level, and top off if necessary.
- Dispose of used oil and the old crush washer (if replaced) properly at an oil recycling facility.
- Wipe down the engine area to remove any drips or excess oil for a clean, professional finish.
Model-Specific Notes for the 2009 Yamaha TTR50
- This model does not use an external oil filter; only the internal mesh strainer, which typically does not require removal except for major service.
- Drain bolt location and size can vary between years and runs (commonly 12mm or 17mm on this engine). Confirm before starting to avoid unnecessary trip to the tool bench.
- Use of Yamalube 10W-40 is strongly recommended by Yamaha for proper wet clutch operation and longevity.
- Always double-check oil level after the first ride following a change; air pockets or settling can alter the reading.
- Change oil more frequently if riding in dusty, hot, or wet/muddy conditions.
Common Questions & Troubleshooting
- Can I use car oil? Do not use automotive oil. Dirt bike engines have wet clutches—automotive oils can cause clutch slippage.
- How often should I change the oil? Yamaha recommends every 6-10 hours of use or at least twice per riding season, whichever comes first.
- How much oil should I use? Start with 1 quart, check, and add more if needed. Never fill above the max.
Final Tips
- Use a funnel to avoid spills—access around the filler neck is tight.
- Keep a spare crush washer on hand for peace of mind.
- Mark your calendar for the next change; clean oil keeps your TTR50’s little thumper running strong for seasons to come.
For Yamaha TTR50 OEM parts, premium oils, and reliable service kits, shop MotoSport.com—your one-stop shop for everything dirt bike.
Related Shopping Categories
Shop Motor Oil for a 2009 Yamaha TTR50 Dirt Bike.
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Shop Oil Drain Pans for a 2009 Yamaha TTR50 Dirt Bike.
Shop Tools for a 2009 Yamaha TTR50 Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2009 Yamaha TTR50 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.