Yamaha YFM45FGW Grizzly 450 2007 Owner's Manual

Yamaha YFM45FGW Grizzly 450 2007 manual cover

Pages 178

Year 2007

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Yamaha YFM45FGW Grizzly 450 2007 Specification

The Yamaha YFM45FGW Grizzly 450, released in 2007, is a robust all-terrain vehicle (ATV) designed for both recreational and utility purposes. This model is powered by a 421cc, single-cylinder, liquid-cooled, SOHC 4-stroke engine, delivering reliable performance with a balance of power and efficiency. The engine is paired with an Ultramatic V-belt transmission featuring high, low, reverse, and neutral gears, ensuring smooth and adaptable handling across diverse terrains. The Grizzly 450's chassis includes independent double-wishbone suspension at the front and rear, providing 6.3 inches of travel at the front and 7.1 inches at the rear for superior ride comfort and stability.

This ATV is equipped with hydraulic disc brakes on both the front and rear, offering excellent stopping power and control. The 4WD system, coupled with a locking front differential, enhances traction and maneuverability in challenging conditions. The Yamaha Grizzly 450 boasts a durable steel frame and plastic bodywork, contributing to its rugged and resilient build. It features a spacious and comfortable seating arrangement, allowing for extended periods of riding without discomfort.

Additional practical features include a digital LCD multifunction display for monitoring speed, fuel level, and other critical information, as well as front and rear cargo racks capable of carrying significant loads. The Grizzly 450's fuel tank has a capacity of 3.8 gallons, providing ample range for long rides. With a ground clearance of 10.8 inches and a dry weight of approximately 600 pounds, this ATV is well-suited for navigating rough and uneven terrain. Overall, the 2007 Yamaha YFM45FGW Grizzly 450 embodies a blend of power, durability, and versatility, making it a reliable choice for both work and leisure in various environments.

Yamaha YFM45FGW Grizzly 450 2007 F.A.Q.

How do I change the oil on a Yamaha YFM45FGW Grizzly 450 2007?

To change the oil, warm up the engine, place an oil pan under the drain plug, remove the plug and let the oil drain completely. Replace the drain plug, remove the oil filter, and install a new one. Refill with the recommended oil type and quantity.

What type of oil should I use for the Yamaha Grizzly 450 2007?

Use a high-quality 4-stroke engine oil with a viscosity of 10W-40. It should meet or exceed the JASO MA standard for wet clutches.

How can I troubleshoot starting issues with my Grizzly 450 2007?

Check the battery for charge and connections, ensure the ignition switch is on, inspect the spark plug for fouling, and verify that fuel is reaching the carburetor.

What is the recommended tire pressure for the Yamaha Grizzly 450 2007?

The recommended tire pressure is 4 psi for the front tires and 7 psi for the rear tires. Always check the pressure when the tires are cold.

How often should I perform maintenance on my Yamaha Grizzly 450?

Basic maintenance such as oil changes should be performed every 20 hours of operation or every 100 miles. Check the owner's manual for a detailed schedule.

What should I do if my Grizzly 450 2007 overheats?

Turn off the engine immediately and let it cool down. Check the coolant level and inspect the radiator for blockages. If the problem persists, consult a professional mechanic.

How do I adjust the brakes on the Yamaha Grizzly 450 2007?

Locate the brake adjusters near the wheels. Turn them clockwise to tighten or counterclockwise to loosen the brakes. Ensure the wheels rotate freely when not engaged.

What is the proper way to clean the air filter on my Grizzly 450?

Remove the air filter, wash it with a mild detergent and warm water, rinse thoroughly, and allow it to dry completely. Apply air filter oil before reinstalling.

How do I check the transmission fluid level on my Yamaha Grizzly 450?

Place the ATV on a level surface, remove the transmission dipstick, wipe it clean, reinsert it fully, then remove again to check the fluid level. It should be between the lower and upper marks.

What spark plug type and gap should be used for the Yamaha Grizzly 450 2007?

Use an NGK DR8EA spark plug with a gap of 0.6-0.7 mm. Ensure the plug is properly torqued to prevent damage.