Motorex 311243 Oil Change Kit 10W-40 Full-Syn 2019-2026 Yamaha YZ250F/FX

Precision Maintenance: Motorex YZ250F/FX Exact Fill Kit

Stop wasting time measuring out liters or storing half-empty oily bottles in your garage. The Motorex 311243 Oil Change Kit is the ultimate OEM Replacement solution for Yamaha riders who value precision and speed. Specifically engineered for the high-revving demands of the YZ250F and YZ250FX, this kit provides the exact .75L of Top Speed 4T oil required for a standard service. At Moto-House MX, we know that championship-level performance starts with clean, high-grade lubrication that eliminates the guesswork.

This kit features Motorex Top Speed 10W-40, a modern Full-Synthetic Racing Performance lubricant designed to withstand the extreme thermal loads of modern four-stroke motocross engines. The JASO MA2 certification ensures your wet clutch remains grabby and fade-free during the most intense motos. Combined with a premium high-flow oil filter and a fresh OEM-spec crush washer, this kit offers a Heavy Duty barrier against engine wear while maintaining your factory warranty requirements.

Top Features: Motorex 10W-40 Oil Change Kit

• Exact Fill Volume: Includes precisely .75L of oil to prevent overfilling and eliminate leftover waste.
• Full-Synthetic Top Speed 4T: High-performance 10W-40 formula designed for maximum thermal stability and shear resistance.
• JASO MA2 Certified: Optimized specifically for wet clutch performance to prevent slipping under heavy loads.
• Complete Service Package: Includes a premium high-flow oil filter and the necessary sealing washer for a leak-free fit.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2019 - 2026	Yamaha	YZ250F
2020 - 2026	Yamaha	YZ250FX

Frequently Asked Questions

Q: Is this kit enough oil for a filter change?
A: Yes, this kit provides exactly .75L (750ml), which is the factory-specified amount for an oil and filter change on 2019-2025 YZ250F/FX models.

Q: Will using Motorex oil void my Yamaha warranty?
A: No. Motorex Top Speed 4T meets or exceeds all manufacturer specifications and JASO MA2 standards required by Yamaha.

Q: Does the kit include the drain plug washer?
A: Yes, each kit comes with an OEM-style crush washer or O-ring to ensure a proper seal and prevent leaks after your service.

Upgrade Your Ride with the easiest maintenance hack in the pits.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.