fits model: Yfm350, Yfm, 4x4, 350, Bear. make: Yamaha. year: 1990–1994.

( Manufacturer Part Number: 3HN-85540-10-10 ), ( Part Type: Ecm Box Ecu ), ( Machine Type: Atv ), ( Color: Black ), ( Compatible Model: Big Bear 350, Yfm350 ), ( Compatible Year: 1994, 1993, 1992, 1991, 1990 )
Welcome to an exciting journey through the world of off-road adventure with the Yamaha YFM350 4x4 Big Bear. This legendary ATV, model 3HN-85540-10-10, was a significant part of Yamaha's lineup between 1990 and 1994.
The Yamaha YFM350 4x4 Big Bear is a powerhouse of off-road capabilities, boasting a potent 348cc liquid-cooled, 4-stroke SOHC engine. This engine is paired with a CDI (Capacitive Discharge Ignition) system, ensuring reliable ignition and optimal performance under various conditions. The engine's power is routed through a 5-speed transmission, offering a versatile range of speeds to tackle a variety of terrains.
The 4x4 Big Bear showcases Yamaha's commitment to superior handling and comfort. Its rugged steel frame provides a strong and stable base, while the independent double wishbone suspension on all four wheels ensures a smooth ride, even on the most challenging trails. The long-travel, adjustable shocks further enhance the Big Bear's capability to absorb impacts and maintain traction.
Comfortable ergonomics are another hallmark of this ATV. The plush seat, adjustable handlebars, and well-placed controls make for a comfortable and confident riding position. The Big Bear's large 21-inch front and 20-inch rear wheels, coupled with all-terrain tires, provide excellent traction and stability, ensuring a secure ride during high-speed off-road adventures.
This Big Bear model also features an ECM (Engine Control Module), which manages the engine's various functions for optimal performance and fuel efficiency. The Big Bear's durable design, combined with its powerful engine and superior suspension, makes it an excellent choice for riders seeking a reliable and capable off-road companion.
In summary, the Yamaha YFM350 4x4 Big Bear (Model: 3HN-85540-10-10, Years: 1990-1994) offers a blend of power, comfort, and versatility that makes it a standout in the world of ATVs. Whether you're a seasoned off-road enthusiast or just starting your adventure, this iconic ATV is sure to deliver memories that will last a lifetime.
1. Reliability: The Yamaha YFM350 4x4 has a reputation for being a robust and dependable ATV, making it a good choice for those who need a vehicle for heavy-duty tasks.
2. Power: The 350cc engine provides a decent amount of power, suitable for various terrains and diverse riding conditions.
3. Four-wheel drive: The 4x4 capability allows the ATV to handle difficult terrains, ensuring a smooth ride even in challenging conditions.
4. CDI (Capacitor Discharge Ignition) and ECM (Engine Control Module): These features help improve fuel efficiency, engine performance, and ease of starting.
5. Box ECM: This feature offers enhanced diagnostic capabilities, making it easier to troubleshoot and repair any issues that may arise.
Cons:1. Age: The model you're considering is from the early 1990s, which may mean that some parts are no longer readily available or may need to be rebuilt or replaced.
2. Maintenance: Older ATVs may require more frequent maintenance to keep them in good working order, which can be costly over time.
3. Aesthetics: The design of older models may not be as modern or visually appealing as newer models on the market.
4. Safety Features: Older ATVs may not have some of the safety features found in newer models, such as more advanced braking systems or rollover protection.
Conclusion: The Yamaha YFM350 4x4 (3hn-85540-10-10, 1990-1994) is a reliable and powerful ATV, particularly suited for those who require a heavy-duty vehicle for various terrains. However, its age means that it may require more frequent maintenance and some parts may be hard to find. If you're willing to invest in the maintenance and potential upgrades, this ATV could serve you well.
Recommendation: If you're set on this model, I'd recommend thoroughly inspecting the vehicle before purchasing to ensure it's in good working order. It may also be beneficial to budget for potential repairs or part replacements. If you're open to a newer model, you might want to consider a more recent Yamaha ATV with modern safety features and a more extensive parts availability.
Missing ground ring terminal only. Tested and working.