K&N High Flow Air Filter for Yamaha Big Bear 250 ATV
K&N High Flow Air Filter for Yamaha Big Bear 250 ATV
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Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
Yamaha Big Bear 250 ATV (2007-2009)
The Yamaha Big Bear 250, available from 2007 to 2009, is a robust utility-focused ATV. It features a reliable 230cc, air-cooled, SOHC, four-stroke, single-cylinder engine, known for its excellent low- and mid-range power. This model maintained consistent specifications throughout these years, ensuring dependable performance for both work and recreation. Throughout the 2007-2009 production period, the Big Bear 250 was primarily offered as a single trim, often identified as the "Big Bear 250 2x4." There were no significant mid-cycle generation or engine changes; the 2008 and 2009 models were carryovers from the established 2007 design, which itself built upon the original 2005 introduction. Key engine characteristics like bore, stroke, and compression ratio remained unchanged. Q: How do I ensure this part fits my Yamaha Big Bear 250?
A: To guarantee compatibility, please use the year and model selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Check level before each ride. Initial change: 1 month, 320 km or 20 hours. Subsequent changes: Every 6 months, 2,500 km or 160 hours. | The oil filter should be replaced with each oil change. Some sources suggest changes every 3 months, 1,300 km or 80 hours. |
| Air Filter | Clean every 20 to 40 hours. Check every 20 hours. | Clean more often in wet or dusty conditions. Inspect every 25 to 50 hours or after each ride in dusty/muddy conditions. Replace if damaged. |
| Spark Plug | Check periodically. | General Yamaha recommendations suggest replacement annually or every 100 hours. Recommended gap is 0.6–0.7 mm. |
| Coolant | Check level regularly. | Manufacturers generally specify replacement every two to five years. |