Yamaha YZ450FXK YZ450FX 2019 Owner's Manual

Yamaha YZ450FXK YZ450FX 2019 manual cover
Pages 388
Year 2019
Language(s)
English en

Yamaha YZ450FXK YZ450FX 2019 Specification

The Yamaha YZ450FXK YZ450FX 2019 is a high-performance off-road motorcycle engineered for competitive racing and advanced trail riding. This model features a potent 450cc, liquid-cooled, DOHC, four-stroke engine that delivers exceptional power and torque, optimized for both low-end grunt and high-rpm performance. The engine incorporates Yamaha's innovative reverse cylinder head design, which enhances mass centralization and improves handling. The YZ450FXK utilizes a lightweight bilateral beam aluminum frame, providing a perfect balance of rigidity and flex for superior stability and agility on diverse terrains.

Equipped with an electric start system, the YZ450FXK ensures quick and effortless ignition, essential for race scenarios and difficult trail conditions. The bike is also outfitted with a specially tuned wide-ratio five-speed transmission, offering versatility across a range of speeds and technical riding situations. The suspension system features fully adjustable KYB® speed-sensitive forks and a KYB® rear shock, delivering precise handling and exceptional bump absorption.

Additionally, the YZ450FXK boasts advanced electronics, including a programmable ECU and Yamaha's Power Tuner app compatibility, allowing riders to customize engine performance parameters via a smartphone. The bike's braking system comprises high-performance disc brakes front and rear, ensuring reliable stopping power.

Ergonomically, the YZ450FXK is designed with a slim body profile and a flat seat, enhancing rider mobility and comfort during extended rides. The fuel tank capacity is 2.2 gallons, providing ample range for long-distance excursions. Overall, the Yamaha YZ450FXK YZ450FX 2019 stands out as a formidable machine in the off-road segment, combining cutting-edge technology with robust engineering to meet the demands of serious riders.

Yamaha YZ450FXK YZ450FX 2019 F.A.Q.

What type of fuel should be used for the Yamaha YZ450FX 2019?

The Yamaha YZ450FX 2019 is designed to run on unleaded gasoline with a minimum octane rating of 91 (R+M)/2. Using fuel with a lower octane rating can lead to engine knocking and potential damage.

How often should the oil be changed on a Yamaha YZ450FX 2019?

It is recommended to change the engine oil every 15 hours of operation or sooner if the bike is used in harsh conditions. Regular oil changes ensure optimal engine performance and longevity.

What is the recommended tire pressure for the Yamaha YZ450FX 2019?

The recommended tire pressure for the Yamaha YZ450FX 2019 is 15 psi for both front and rear tires. Adjustments may be necessary based on terrain and riding conditions.

How can I adjust the suspension settings for better handling on the Yamaha YZ450FX 2019?

To adjust the suspension settings, refer to the owner's manual for baseline settings. Fine-tune the compression and rebound damping based on rider weight and terrain to achieve better handling.

What should I do if the Yamaha YZ450FX 2019 won’t start?

First, check the fuel level and ensure the fuel is fresh. Verify that the kill switch is in the 'run' position, and inspect the spark plug for wear or fouling. If the problem persists, seek professional service.

How do I clean and maintain the air filter on the Yamaha YZ450FX 2019?

Remove the air filter and wash it with a mild detergent and water. Allow it to dry completely before re-oiling with the appropriate air filter oil. Regular maintenance helps maintain engine performance.

What type of coolant should be used in the Yamaha YZ450FX 2019?

Use a high-quality ethylene glycol-based coolant mixed with distilled water in a 1:1 ratio. Regularly check and maintain the coolant level to prevent overheating.

How do I properly store the Yamaha YZ450FX 2019 during the off-season?

To store the bike, clean it thoroughly, change the oil, fill the tank with fuel stabilizer, and remove the battery. Store in a dry, cool place and cover it to protect against dust.

What are the torque specifications for the Yamaha YZ450FX 2019's engine components?

Refer to the service manual for specific torque settings for engine components. Critical areas include cylinder head bolts, which typically require specific torque values to ensure proper sealing and performance.

How do I adjust the chain tension on the Yamaha YZ450FX 2019?

To adjust the chain tension, place the bike on a stand, loosen the axle nut, and adjust the chain adjusters evenly on both sides until the correct tension is achieved. Ensure proper alignment and retighten the axle nut.