Yamaha YFM45FGZ, YFM45FGHZ Grizzly 450 2010 Owner's Manual

Yamaha YFM45FGZ, YFM45FGHZ Grizzly 450 2010 manual cover
Pages 170
Year 2010
Language(s)
English en

Yamaha YFM45FGZ, YFM45FGHZ Grizzly 450 2010 Specification

The Yamaha YFM45FGZ and YFM45FGHZ Grizzly 450 models from 2010 are robust all-terrain vehicles (ATVs) designed for both recreational and utility purposes. These models are equipped with a 421cc liquid-cooled SOHC 4-stroke engine, providing a solid balance between power and fuel efficiency. The engine is paired with a fully automatic Ultramatic transmission that includes high, low, reverse, and neutral settings, ensuring smooth and reliable performance across various terrains.

The Grizzly 450 features Yamaha's On-Command 2WD/4WD system, allowing the rider to seamlessly switch between two-wheel drive and four-wheel drive, enhancing traction and control as needed. The suspension system includes an independent double wishbone setup with 5-way preload adjustment, providing 6.3 inches of travel in the front and 7.1 inches in the rear, which ensures a comfortable ride over rough surfaces.

For braking, the Grizzly 450 utilizes dual hydraulic front disc brakes and a sealed rear drum brake, offering reliable stopping power in diverse conditions. The ATV's chassis is built with a rugged steel frame designed to handle tough environments, while the overall dimensions of the vehicle contribute to its stability and maneuverability. The Grizzly 450 has a ground clearance of 10.8 inches and a seat height of 33.6 inches, making it accessible for a wide range of riders.

Additional features include a digital meter for clear and concise readouts of essential information, a 3.7-gallon fuel tank for extended riding sessions, and a towing capacity of up to 1,322 pounds, making it capable of handling significant workloads. The combination of performance, durability, and versatility makes the Yamaha YFM45FGZ, YFM45FGHZ Grizzly 450 a reliable choice for both work and play.

Yamaha YFM45FGZ, YFM45FGHZ Grizzly 450 2010 F.A.Q.

How do I check the engine oil level on my Yamaha YFM45FGZ?

To check the engine oil level, ensure the ATV is on level ground. Remove the dipstick, wipe it clean, insert it back without screwing, and then remove it again to check the level. The oil should be between the minimum and maximum marks.

What type of oil is recommended for the Yamaha Grizzly 450 2010?

Yamaha recommends using Yamalube 4 10W-40 for optimal performance, but a high-quality 10W-40 motor oil designed for ATVs can also be used.

How often should I change the oil in my YFM45FGHZ Grizzly?

The oil should be changed every 20 hours of operation or every 160 miles, whichever comes first. Always refer to the owner’s manual for specific maintenance intervals.

What should I do if my Grizzly 450 won't start?

First, check the fuel level and ensure the fuel valve is on. Check the battery connections for tightness and corrosion. Inspect the spark plug for fouling. If the problem persists, consult a Yamaha service provider.

How can I adjust the idle speed on my Yamaha Grizzly 450?

Locate the idle adjustment screw on the carburetor. Turn the screw clockwise to increase the idle speed or counterclockwise to decrease it. Ensure the engine is warm before making adjustments.

What is the proper tire pressure for the Yamaha YFM45FGZ?

The recommended tire pressure is 4 psi for the front tires and 4.4 psi for the rear tires. Always check the tire pressure when the tires are cold.

How do I clean the air filter on my YFM45FGHZ Grizzly?

Remove the air filter cover, take out the filter, and wash it with a mild soap and water solution. Allow it to dry completely before applying a light coat of air filter oil and reinstalling it.

What are the torque specifications for the wheel lug nuts on the Yamaha Grizzly 450?

The wheel lug nuts should be torqued to 40 ft-lbs (54 Nm). It is important to use a torque wrench to ensure proper tightening.

How do I troubleshoot the electrical system if my Grizzly 450’s lights aren’t working?

Check the fuse box for any blown fuses and replace them if necessary. Ensure all wiring connections are secure and not corroded. Test the battery voltage; it should be approximately 12.6 volts when fully charged.

What routine maintenance should be performed on the Yamaha YFM45FGZ Grizzly 450?

Routine maintenance includes checking and changing the engine oil, inspecting the air filter, checking brake pads, lubricating the drive chain, inspecting the tires for wear and proper pressure, and ensuring all bolts and nuts are tight.