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Description
FEATURES
- Feature two layers of special Hiflo foam, providing dual advantages of high air flow for top engine performance and maximum filtration
- Direct replacement of original equipment filter with no need to change carburetor jets or settings
- Filter can be used over and over again without any loss of performance
Technical Specifications
- MFG. Part Number HFF2023
Vehicle Information
Yamaha YZ85 Dirt Bike (2002-2026)
The Yamaha YZ85 has been a dominant force in youth motocross from 2002 to 2026, consistently powered by an 85cc liquid-cooled, two-stroke, single-cylinder engine. This high-performance dirt bike is designed for aspiring racers, offering a blend of power and agility. Throughout its production, the YZ85 has been available in two primary trims: the Standard YZ85 with 17-inch front and 14-inch rear wheels, and the YZ85LW (Large Wheel) featuring larger 19-inch front and 16-inch rear wheels, catering to taller riders. While the core 85cc engine remained, the YZ85 underwent significant evolution. A major "ground-up redesign" in 2019 introduced a new engine with Yamaha Power Valve System (YPVS) for broader power delivery, along with updated suspension, swingarm, brakes, and ergonomics. Further revisions in 2022 refined the styling and chassis, including a flatter seat, narrower fuel tank, reworked air intake, and a new lightweight aluminum subframe, making it resemble larger YZ models. The 2026 model largely carries over these enhancements with updated graphics. FAQ:
Q: How do I ensure this part fits my Yamaha YZ85?
A: To guarantee a perfect fit, please use the year and edition selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil (Transmission Oil) | Recreational riding: every 10 hours. Aggressive/race riding: every 5 hours. For 2002 model, also once a month, whichever comes first. | 2-stroke engine, uses transmission oil. |
| Oil Filter | Not applicable (no conventional oil filter) | 2-stroke engine does not have a replaceable spin-on oil filter. Maintenance relies on frequent transmission oil changes and inspection of an internal screen filter. |
| Belt | Not applicable | The Yamaha YZ85 is chain-driven, not belt-driven. |
| Spark Plug | Periodically inspect and clean. Replace as necessary. | Recommended gap: 0.6-0.7 mm. |
| Air Filter | Recreational riding: clean every 5 hours. Aggressive/race riding: clean every 2-3 hours. Clean more often in dusty conditions. Replace as necessary. | |
| Coolant | Check level before each use. Replace every 2 years. | Inspect cooling system for any leakage. |