Honda CRF250R 2021 Competition Handbook

Honda CRF250R 2021 Motorcycle manual cover
Pages 132
Year 2021
Language(s)
English en

Honda CRF250R 2021 Motorcycle Specification

The Honda CRF250R 2021 Motorcycle is a high-performance off-road bike designed to excel in motocross competition. It is powered by a 249cc liquid-cooled, single-cylinder, four-stroke engine that features a double overhead camshaft (DOHC) configuration and a bore and stroke of 79mm x 50.9mm. This engine is paired with a Programmed Fuel Injection (PGM-FI) system, ensuring precise throttle response and efficient fuel usage. The six-speed transmission offers smooth shifting and optimal power delivery across various terrains.

The chassis of the Honda CRF250R is constructed from a lightweight aluminum frame, providing a balance of rigidity and flexibility for superior handling and stability. The bike's suspension system includes a fully adjustable Showa 49mm coil-spring fork at the front and a Pro-Link Showa single shock at the rear, both designed to absorb impacts and maintain consistent performance on rough tracks.

Braking is managed by a 260mm hydraulic wave disc with a twin-piston caliper at the front and a 240mm hydraulic wave disc with a single-piston caliper at the rear, delivering reliable stopping power. The motorcycle's ergonomics are optimized for rider comfort and control, featuring a narrow seat, low-set footpegs, and Renthal Fatbar handlebars.

The CRF250R's overall weight is 237 pounds (wet), and it has a fuel capacity of 1.6 gallons. Its modern styling incorporates aggressive graphics and a streamlined bodywork that enhance both aesthetics and aerodynamics. The Honda CRF250R 2021 is engineered to provide a competitive edge with its powerful engine, advanced suspension, and precise handling characteristics, making it a top choice for serious motocross riders.

Honda CRF250R 2021 Motorcycle F.A.Q.

What is the recommended oil type for the 2021 Honda CRF250R?

The recommended oil type for the 2021 Honda CRF250R is Pro Honda GN4 4-stroke oil, 10W-30 or 10W-40.

How often should I change the oil in my 2021 Honda CRF250R?

It is recommended to change the oil every 15 hours of use or more frequently if riding in extreme conditions.

How do I adjust the suspension on my Honda CRF250R 2021?

To adjust the suspension, use the clickers located on the front forks and rear shock to fine-tune compression and rebound settings based on your riding style and terrain. Consult the owner’s manual for specific guidance.

What is the proper chain tension for the 2021 Honda CRF250R?

The chain slack should be adjusted to 1.4 inches (35 mm) when measured at the mid-point of the chain between the front and rear sprockets.

How can I troubleshoot starting issues with my CRF250R?

If the bike has starting issues, check the battery charge, ensure the fuel is fresh, inspect the spark plug for fouling, and verify that the kill switch is not engaged.

What is the valve clearance specification for the 2021 Honda CRF250R?

The intake valve clearance should be 0.15 mm (0.006 inches) and the exhaust valve clearance should be 0.28 mm (0.011 inches).

How do I maintain the air filter on a Honda CRF250R?

Remove the air filter, clean it with air filter cleaner, rinse it thoroughly, let it dry, and then apply air filter oil before reinstalling. Inspect and clean after every ride in dusty conditions.

What fuel type should I use for the 2021 Honda CRF250R?

Use unleaded gasoline with a pump octane number of 91 or higher.

How can I improve the braking performance on my CRF250R?

Ensure the brake pads are not worn, bleed the brake lines to remove air, and check the brake fluid level. Upgrading to high-performance brake pads can also improve performance.

What are the tire pressure recommendations for the 2021 Honda CRF250R?

For optimal performance, maintain the front tire pressure at 15 psi and the rear at 15 psi. Adjust as needed based on terrain and rider preference.