Common Issues on the 2020 Yamaha YZ85

Shop parts for a 2020 Yamaha YZ85 Dirt Bike.

Overview

The 2020 Yamaha YZ85 is a popular choice among young riders and those transitioning to competitive motocross. Known for its lightweight design and agile handling, it is primarily intended for motocross riding. The YZ85 has a solid reputation for performance and reliability, making it a favorite in the youth motocross category.

Common Mechanical Problems & Known Weak Points

Engine & Power Delivery

Some riders report issues with the engine stalling or losing power during rides. Symptoms include inconsistent throttle response and difficulty maintaining speed. This can occur due to a clogged air filter or improper jetting. Regularly cleaning or replacing the air filter and ensuring proper jetting can help prevent this issue.

Fueling or Intake Issues

Fuel leaks can sometimes occur, leading to poor performance and potential safety hazards. Common symptoms include fuel pooling around the carburetor. This issue may arise from worn gaskets or loose connections. Inspecting and replacing gaskets as needed can mitigate this problem.

Suspension Problems

Some owners experience issues with the front forks, such as leaking seals or inadequate damping. Symptoms include a harsh ride and poor handling. This can be caused by wear and tear or improper setup. Regular maintenance and checking fork oil levels can enhance performance.

Electrical or Starting Issues

Electrical problems, such as a weak battery or faulty wiring, can lead to starting difficulties. Symptoms include the bike not starting or intermittent electrical failures. Ensuring connections are clean and tight, along with regular battery maintenance, can help prevent these issues.

Transmission or Clutch Concerns

Some riders report clutch slippage or difficulty shifting gears. Symptoms include a lack of power transfer and grinding noises. This can occur due to worn clutch plates or improper adjustment. Regularly checking and adjusting the clutch can improve performance.

Brakes or Handling

Brake fade or sponginess can be an issue, particularly under heavy use. Symptoms include a longer stopping distance and a soft brake lever. This may be due to worn brake pads or air in the brake lines. Regularly inspecting and replacing brake components can enhance safety.

Chassis, Plastics, or Hardware Weak Points

Cracks in the plastics or loose hardware can occur, especially after crashes. Symptoms include rattling noises and visible damage. Regularly inspecting and tightening hardware, along with replacing damaged plastics, can maintain the bike's integrity.

Factory Recalls & Manufacturer Notices

No major recalls have been reported for the 2020 Yamaha YZ85. Owners should stay informed about any service bulletins that may arise in the future.

Preventative Upgrades & Reliability Improvements

Common preventative upgrades include installing a high-performance air filter and upgrading to a more durable chain. Regular maintenance, such as oil changes and checking suspension settings, can significantly extend the bike's longevity and reliability.

Ownership & Maintenance Tips

  • Check tire pressure before each ride.
  • Inspect and clean the air filter regularly.
  • Change the oil and filter every few rides.
  • Keep the chain lubricated and adjusted.
  • Inspect brake pads and fluid levels frequently.

Owner Outlook

Owners of the 2020 Yamaha YZ85 can expect a reliable and fun riding experience when properly maintained. This model is well-suited for young riders and those looking to compete in motocross, offering a balance of performance and durability.

Related Shopping Categories

Shop Engine Parts for a 2020 Yamaha YZ85 Dirt Bike.

Shop Fuel System for a 2020 Yamaha YZ85 Dirt Bike.

Shop Suspension for a 2020 Yamaha YZ85 Dirt Bike.

Shop Brake Parts for a 2020 Yamaha YZ85 Dirt Bike.

Shop Body Parts for a 2020 Yamaha YZ85 Dirt Bike.

Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.