Yamaha YZ85R 2002 Owner's Manual

Pages 242

Year 2003

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of 242

Yamaha YZ85R 2002 Specification

The Yamaha YZ85R 2002 is a high-performance motocross bike designed for young riders and competitive racing. It features a liquid-cooled, 2-stroke, single-cylinder engine with a displacement of 84.7cc. The engine is equipped with Yamaha's patented Power Valve System (YPVS), which optimizes power delivery across the RPM range. The bike's six-speed transmission ensures smooth and precise gear shifts, allowing riders to maintain control in various terrains and conditions.

The YZ85R's chassis is built from a lightweight aluminum frame, providing an excellent balance of strength and agility. Its suspension system comprises a fully adjustable 36mm inverted front fork and a monocross rear shock with compression and rebound damping adjustments, offering superior handling and stability. The bike is equipped with a front hydraulic disc brake with a 220mm rotor and a rear hydraulic disc brake with a 190mm rotor, ensuring reliable stopping power.

The ergonomically designed seat and handlebars provide a comfortable riding position, while the grippy footpegs ensure stability during aggressive maneuvers. The YZ85R's lightweight construction, combined with its powerful engine and advanced suspension, makes it an ideal choice for young riders looking to advance their skills in motocross racing.

Overall, the Yamaha YZ85R 2002 is a well-engineered motocross bike that delivers exceptional performance, agility, and control. Its advanced features and competitive design make it a standout choice for aspiring young racers.

Yamaha YZ85R 2002 F.A.Q.

How often should I change the oil in my Yamaha YZ85R 2002?

It is recommended to change the oil every 10 hours of riding or after a race to ensure optimal engine performance and longevity.

What type of fuel should I use for my Yamaha YZ85R 2002?

Use high-octane unleaded gasoline, preferably 91 octane or higher, to prevent engine knocking and ensure smooth performance.

How do I adjust the suspension on my Yamaha YZ85R 2002 for better handling?

To adjust the suspension, refer to the owner's manual for recommended settings based on your weight and riding conditions. Adjust the fork and shock absorber settings accordingly for a balanced ride.

What is the recommended tire pressure for the Yamaha YZ85R 2002?

The recommended tire pressure is 15 psi for the front tire and 12 psi for the rear tire. Adjust according to terrain and rider preference.

How can I troubleshoot starting issues with my Yamaha YZ85R 2002?

Check the spark plug for fouling, ensure the fuel is fresh, and verify that there is a strong spark. Additionally, inspect the carburetor for clogs and clean it if necessary.

What maintenance should I perform after every ride on my Yamaha YZ85R 2002?

After each ride, clean the bike thoroughly, lubricate the chain, check for loose bolts and nuts, and inspect the air filter for any debris or damage.

How do I properly store my Yamaha YZ85R 2002 during the off-season?

Clean the bike thoroughly, change the oil, drain the fuel system, disconnect the battery, and store the bike in a cool, dry place. Cover it to protect from dust and moisture.

What are the common reasons for overheating in a Yamaha YZ85R 2002?

Overheating can occur due to low coolant levels, a clogged radiator, or excessive engine load. Check the coolant level, clean the radiator, and ensure proper airflow during operation.

How can I improve the performance of my Yamaha YZ85R 2002?

Performance can be enhanced by upgrading the exhaust system, tuning the carburetor, and ensuring regular maintenance. Consider aftermarket parts for increased power output.

What spark plug should I use for my Yamaha YZ85R 2002?

Use an NGK BR10EG spark plug for optimal performance. Ensure the gap is set to the manufacturer's specification before installation.