Yamaha YZ85Z YZ 2010 Owner's Manual

Yamaha YZ85Z YZ 2010 manual cover
Pages 82
Year 2010
Language(s)
English en

Yamaha YZ85Z YZ 2010 Specification

The Yamaha YZ85Z YZ 2010 is a high-performance motocross bike engineered for youth riders. Its specifications highlight a focus on power, agility, and durability, making it a competitive choice in the 85cc class. The heart of the YZ85Z is an 84.7cc liquid-cooled, 2-stroke, single-cylinder engine with a reed valve induction system, delivering robust power and responsive throttle action. It features a 6-speed transmission that allows riders to harness the engine's full potential across various terrains.

The chassis of the YZ85Z is constructed from high-tensile steel, providing a strong yet lightweight frame designed to handle the rigors of motocross racing. The suspension setup includes a fully adjustable 36mm KYB inverted fork at the front and a monocross shock at the rear, both offering extensive travel to absorb rough tracks and jumps. This configuration ensures exceptional handling and stability.

Braking performance is managed by hydraulic disc brakes on both the front and rear, giving riders precise control and stopping power. The bike rolls on 17-inch front and 14-inch rear wheels, which are equipped with knobby tires designed for superior traction on dirt surfaces.

In terms of ergonomics, the YZ85Z features a slim, aggressive design with a flat seat and tapered handlebars, providing comfort and control for young riders. The overall dimensions contribute to a compact and agile feel, essential for maneuvering through tight corners and obstacles.

Weighing in at approximately 73 kilograms (161 pounds) without fuel, the Yamaha YZ85Z YZ 2010 strikes a balance between lightweight agility and structural strength. This motocross bike embodies Yamaha's commitment to delivering high-quality, competitive performance for aspiring motocross athletes.

Yamaha YZ85Z YZ 2010 F.A.Q.

How do I properly break in the engine of my Yamaha YZ85Z 2010?

To break in the engine, start by warming it up fully. Then, ride at varying speeds and throttle positions, avoiding high RPMs for the first few hours. Change the oil after the initial break-in period to remove any metal particles from the new engine.

What type of oil should I use for my Yamaha YZ85Z 2010?

For optimal performance, use a high-quality 2-stroke engine oil designed for motorcycles. Yamaha recommends using their Yamalube 2R, but any comparable oil will suffice.

How often should I clean the air filter on my Yamaha YZ85Z 2010?

Clean the air filter every 2-3 rides, or more frequently if you are riding in dusty conditions. A clean air filter ensures optimal engine performance and prevents dust and dirt from entering the engine.

What is the correct spark plug gap for a Yamaha YZ85Z 2010?

The correct spark plug gap for the Yamaha YZ85Z 2010 is 0.6–0.7 mm (0.024–0.028 inches). Always check and adjust the gap when installing a new spark plug.

How do I adjust the suspension on my Yamaha YZ85Z 2010 for better handling?

Adjust the suspension based on your weight and riding conditions. Start by setting the sag, then adjust the compression and rebound damping to fine-tune the ride. Refer to the owner’s manual for specific settings.

How can I troubleshoot starting issues with my Yamaha YZ85Z 2010?

Check the spark plug for fouling, ensure the fuel is fresh, and verify that the carburetor is clean. Make sure the kill switch is in the 'run' position and that the fuel valve is open.

What regular maintenance should be performed on the Yamaha YZ85Z 2010?

Regular maintenance includes checking fluid levels, inspecting and cleaning the air filter, tightening bolts, lubricating the chain, and inspecting tires for wear. Regularly check and adjust the brakes and clutch as well.

How do I change the transmission oil on my Yamaha YZ85Z 2010?

To change the transmission oil, first remove the drain bolt to let the old oil drain out completely. Replace the drain bolt and refill with the recommended oil through the filler cap until the oil reaches the correct level.

What tire pressure is recommended for the Yamaha YZ85Z 2010?

The recommended tire pressure for the Yamaha YZ85Z 2010 is generally around 12 psi for the front tire and 12 psi for the rear tire, but it can be adjusted based on terrain and rider preference.

How can I improve the performance of my Yamaha YZ85Z 2010?

To improve performance, consider upgrading the exhaust system, tuning the carburetor, and ensuring the suspension is properly adjusted. Regular maintenance such as cleaning the air filter and maintaining the chain can also enhance performance.