Honda CRF450R 2018 Manual

Honda CRF450R 2018 Motorcycle manual cover

Pages 197

Year 2018

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Honda CRF450R 2018 Motorcycle Specification

The 2018 Honda CRF450R is engineered for high performance and competitive motocross racing. It features a 449cc liquid-cooled, single-cylinder, four-stroke engine designed to deliver robust power and torque across a broad RPM range. The Unicam cylinder head contributes to a compact engine design, optimizing mass centralization and enhancing handling characteristics. Fuel injection ensures precise throttle response and efficient fuel management, while the electric starter provides convenient ignition in all conditions.

The chassis of the CRF450R incorporates an aluminum twin-spar frame that balances rigidity and flexibility, offering both stability and responsive handling. The suspension system includes a 49mm Showa coil-spring front fork and a Pro-Link rear suspension with a Showa shock, both fully adjustable for rebound and compression damping. This setup ensures superior traction and control over varied terrain.

Braking is managed by a 260mm front disc brake and a 240mm rear disc brake, delivering reliable stopping power. The bike rides on DID rims with Dunlop Geomax MX3S tires, designed to provide excellent grip and durability. Ergonomically, the CRF450R features a slim and lightweight body with a flat seat and new footpeg position, enhancing rider comfort and mobility.

The 2018 model also includes HRC Launch Control, which optimizes power delivery for strong starts off the line. The titanium fuel tank reduces weight while maintaining fuel capacity. The overall dry weight is approximately 233 pounds, contributing to the bike's agility and ease of handling. With its advanced engineering and competitive features, the Honda CRF450R 2018 stands out as a formidable choice for serious motocross enthusiasts.

Honda CRF450R 2018 Motorcycle F.A.Q.

What is the recommended oil type and capacity for a 2018 Honda CRF450R?

The recommended oil type for a 2018 Honda CRF450R is 10W-30 or 10W-40, and the oil capacity is approximately 1.15 liters (1.21 US qt) when changing the oil and filter.

How often should the air filter be cleaned on a Honda CRF450R?

The air filter on a Honda CRF450R should be cleaned every 6 hours of operation in dusty conditions, or more frequently if necessary.

What is the correct valve clearance specification for the 2018 Honda CRF450R?

The valve clearance for the 2018 Honda CRF450R should be adjusted to 0.16 mm (0.006 in) for the intake and 0.28 mm (0.011 in) for the exhaust.

How do I adjust the suspension settings on my CRF450R for trail riding?

To adjust the suspension for trail riding, soften the compression damping and rebound damping on both the front forks and rear shock to provide a more comfortable ride over rough terrain.

What is the procedure for changing the spark plug on a 2018 CRF450R?

To change the spark plug, remove the seat and fuel tank, disconnect the spark plug cap, and use a spark plug socket to remove and replace the plug. Ensure the new spark plug is torqued to 13 lb-ft (18 Nm).

How can I troubleshoot starting issues on my Honda CRF450R?

If your CRF450R is having starting issues, check the battery charge, inspect the spark plug, and ensure the fuel is fresh. Also, confirm that the engine stop switch is in the 'Run' position.

What are the signs that the clutch needs adjustment or replacement on a CRF450R?

Signs that the clutch may need adjustment or replacement include difficulty in shifting gears, a slipping clutch, or a clutch lever that feels too loose or tight.

How do I maintain the chain on my Honda CRF450R?

Regularly clean the chain with a non-corrosive solvent and apply chain lubricant. Adjust the chain slack to 30-40 mm (1.2-1.6 inches) to ensure proper tension.

What should I do if my CRF450R overheats during a ride?

If your CRF450R overheats, stop the engine and allow it to cool. Check the coolant level and ensure there are no leaks. Also, verify that the radiator is clean and not obstructed.

How often should I replace the brake pads on my 2018 CRF450R?

Brake pads should be inspected regularly and replaced when the pad thickness is less than 1 mm (0.04 inches) or if you notice reduced braking performance.