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Yamaha YZ85: Power & Performance

10/05/2002

Rating: 4.79 (13434 votes)

The Yamaha YZ85 (2022) stands as a formidable contender in the competitive world of youth motocross, offering a potent blend of performance, agility, and rider-focused design. This machine is engineered to provide an exhilarating and confidence-inspiring experience for young riders looking to hone their skills and conquer the track. From its potent powerplant to its meticulously crafted chassis, every element of the YZ85 is geared towards delivering a thrilling and rewarding ride.

What is the Yamaha YZ85 (X) yz85lw(X)?
Page 3 OWNER’S MANUAL YZ85 (X) YZ85LW (X) 5PA-28199-86-E0... Page 5 INTRODUCTION EAU41541 Congratulations on your purchase of the Yamaha YZ85 (X)/YZ85LW (X). This model is the result of Yamaha’s vast experience in the production of fine sporting, touring, and pacesetting racing machines.
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Engine Powerhouse: The Heart of the YZ85

At the core of the Yamaha YZ85 lies a potent 85cc liquid-cooled, 2-stroke engine. This powerplant is renowned for its crisp throttle response and strong mid-range power delivery, crucial for maintaining momentum through challenging sections of a motocross track. The engine's design emphasizes simplicity and reliability, making it easier for young mechanics to understand and maintain. The inclusion of Yamaha's innovative Power Valve System (YPVS) plays a significant role in broadening the engine's powerband, ensuring that it pulls strongly from low-RPMs right through to the top end. This means riders can rely on ample torque for exiting corners and sustained acceleration on straights, without the bike falling flat.

Key Engine Features:

  • Displacement: 85cc
  • Cooling: Liquid-cooled
  • Induction: Reed valve
  • Ignition: Digital CDI
  • Carburettor: Mikuni VM28
  • Clutch: Wet, multi-plate
  • Transmission: 6-speed constant mesh
  • Final Drive: RK Chain

Chassis and Suspension: Agility and Control

The Yamaha YZ85 (2022) benefits from a lightweight yet robust semi-double cradle frame, constructed from high-strength steel. This frame design provides an excellent balance of rigidity and flexibility, crucial for absorbing impacts from jumps and rough terrain while maintaining precise handling. The ergonomics are carefully considered, with a flat seat profile and a narrow tank shroud that allows riders to move freely and easily shift their weight, a fundamental aspect of effective motocross riding.

The suspension system is where the YZ85 truly shines, mirroring the sophisticated setups found on its larger YZ siblings. Upfront, a 41mm inverted telescopic fork, adjustable for compression and rebound damping, offers plush yet controlled action. This allows riders to fine-tune the front end to suit their weight, riding style, and track conditions. The rear suspension features Yamaha's renowned Monocross system, employing a fully adjustable KYB shock absorber. This linkage-driven system provides progressive damping, ensuring excellent traction and stability over bumps and whoops. The generous suspension travel allows the YZ85 to tackle obstacles with confidence.

Suspension Specifications:

ComponentTypeTravelAdjustments
Front Fork41mm Inverted Telescopic10.8 inches (275mm)Compression & Rebound Damping
Rear ShockMonocross Linkage11.1 inches (282mm)Preload, Compression & Rebound Damping

Braking and Wheels: Stopping Power and Grip

Effective braking is paramount for control and safety. The Yamaha YZ85 (2022) is equipped with powerful hydraulic disc brakes front and rear. The front brake features a 220mm disc, providing strong and consistent stopping power, while the rear 190mm disc offers precise modulation. These brakes are designed to offer excellent feel and feedback, allowing riders to brake later and harder with confidence. The wheels are robust 17-inch front and 14-inch rear units, fitted with knobby tires designed for optimal grip on a variety of off-road surfaces. The spoke construction ensures durability, even under the demanding conditions of motocross racing.

Braking Specifications:

BrakeTypeDiameter
FrontHydraulic Disc220mm
RearHydraulic Disc190mm

Why Choose the Yamaha YZ85 (2022)?

The Yamaha YZ85 (2022) is more than just a motorcycle; it's a stepping stone for aspiring motocross champions. Its user-friendly power delivery makes it accessible for beginners, while the advanced suspension and chassis components provide the capability for experienced riders to push their limits. The reliability and durability synonymous with the Yamaha brand mean less time spent in the workshop and more time on the track. Furthermore, the YZ85 is designed with growth in mind, offering adjustable ergonomics and a platform that can be finely tuned as a rider's skills develop.

The sleek, aggressive styling, inspired by Yamaha's championship-winning YZ models, gives the YZ85 a professional look that is sure to impress. The comfortable seating position and ergonomic handlebars contribute to reduced rider fatigue, allowing for longer practice sessions and more focused racing. The inclusion of a reliable transmission system with smooth gear shifting ensures that riders can keep the engine in its sweet spot, maximising performance at all times.

What kind of engine does a Yamaha YZ85 have?

Frequently Asked Questions

Q1: What is the target age range for the Yamaha YZ85 (2022)?
The YZ85 is generally suited for riders aged 11-15, depending on their height and skill level. However, its adjustability means it can accommodate a range of rider sizes.

Q2: Is the Yamaha YZ85 (2022) suitable for beginners?
Yes, the YZ85's manageable power delivery and forgiving chassis make it an excellent choice for beginners transitioning into motocross. Its advanced suspension also helps build confidence.

Q3: What kind of maintenance does the YZ85 require?
Like all 2-stroke motocross bikes, the YZ85 requires regular maintenance, including checking and cleaning the air filter, changing the oil, lubricating the chain, and inspecting the spark plug. The engine's simplicity makes these tasks relatively straightforward.

Q4: Can the Yamaha YZ85 (2022) be used for trail riding?
While primarily designed for motocross tracks, the YZ85 can be used for light trail riding. However, its aggressive gearing and suspension are optimised for racing, so it may not be as comfortable or efficient for extended trail use compared to a dedicated trail bike.

Q5: What are the main differences between the 2022 YZ85 and previous models?
The 2022 YZ85 features updated styling, improved suspension settings, and some internal engine refinements to enhance performance and rider comfort. The overall chassis and engine platform remain largely the same, building on a proven design.

Conclusion

The Yamaha YZ85 (2022) is a finely tuned machine that embodies Yamaha's commitment to performance and rider development. Its potent 2-stroke engine, coupled with sophisticated suspension and a stable chassis, provides a thrilling and capable platform for young riders to excel in motocross. With its focus on reliability, adjustability, and championship-winning DNA, the YZ85 is an outstanding choice for any budding motocross enthusiast looking to make their mark on the track.

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