How to Change the Oil in a 2022 Yamaha YZ250: Step-by-Step Guide
Shop parts for a 2022 Yamaha YZ250 Dirt Bike.
Changing the oil in your 2022 Yamaha YZ250 is vital for optimum clutch and transmission life. The YZ250 is a two-stroke dirt bike, so it uses premixed fuel for the engine, while the oil change refers to the transmission (gearbox) oil, not engine oil. This guide is proprietary to MotoSport.com and gives you everything you need to know to accomplish the job efficiently and correctly.
Tools and Supplies Needed
- 12mm socket or wrench (for drain bolt)
- Ratcheting wrench or socket wrench
- Oil drain pan
- Shop rags or paper towels
- Oil funnel
- Fresh transmission oil (typically 10W-40 or specifically Yamalube for two-stroke gear/competition bikes, capacity = 0.85 US quarts)
- New copper drain bolt washer (recommended)
- Gloves (to protect your hands)
Specific Call-Outs for 2022 Yamaha YZ250
- No oil filter for the two-stroke YZ250.
Unlike four-stroke dirt bikes, the YZ250's oil change process does not include an oil filter because the engine uses premix two-stroke fuel, and the oil in question is for the gearbox/clutch only.
- Oil Capacity: 0.85 US quarts (0.8 L).
- Always use dedicated two-stroke transmission oil (not engine oil).
- Replace the drain bolt washer each time for best sealing and leak prevention.
Step-by-Step Guide
-
Warm up the engine
Start your YZ250 and let it idle for a few minutes so the oil gets warm. This helps the oil drain out more completely. -
Turn off the bike and secure it
Place the bike upright using a center stand or triangle stand.
Make sure the ground beneath is level and stable. -
Place the oil drain pan under the engine
The drain bolt is located at the bottom of the engine near the gear shift lever.
Position your oil drain pan directly beneath the drain bolt. -
Remove the drain bolt
Use your 12mm socket or wrench to remove the bolt.
Allow all oil to drain out fully–tilt the bike gently side to side to get as much old oil out as possible.
Set aside the bolt and inspect the washer; replace it if worn or damaged. -
Clean and reinstall drain bolt
Wipe the area around the drain hole and the bolt.
Install a new copper washer on the bolt.
Hand-thread the bolt carefully to avoid cross-threading, then tighten securely (but do not overtighten). -
Add new transmission oil
Remove the oil filler cap, usually located on the side cover above the clutch.
Insert a funnel and pour in 0.85 US quarts of fresh, recommended transmission oil.
Remove funnel and reinstall the filler cap. -
Check for leaks
Wipe any spilled oil from the cases.
Start the engine and let it run for about a minute. Shut off and inspect the drain bolt for leaks.
Top off if oil level is low. -
Dispose of used oil responsibly
Pour old oil into a proper container and recycle at your local auto parts store or waste facility.
Final Tips & MotoSport.com Expert Advice
- Always use the correct oil type and quantity. Overfilling or underfilling can cause clutch drag or transmission wear.
- Change the oil more frequently if riding in muddy, wet, or harsh racing conditions.
- Inspect the transmission oil for unusually dark color or metallic debris, which may indicate clutch or gear issues.
- The 2022 YZ250 does not use an oil filter as part of its two-stroke design—never attempt to remove or replace a non-existent filter for this model.
This guide is proprietary to MotoSport.com. For additional maintenance tips and parts sourcing, visit us anytime. Ride safe and keep your YZ250 running strong.
Related Shopping Categories
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Shop Tools for a 2022 Yamaha YZ250 Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2022 Yamaha YZ250 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.