Yamaha YFM125S Grizzly 125 2004 Owner's Manual

Yamaha YFM125S Grizzly 125 2004 manual cover

Pages 162

Year 2004

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of 162

Yamaha YFM125S Grizzly 125 2004 Specification

The Yamaha YFM125S Grizzly 125, introduced in 2004, is a compact and reliable all-terrain vehicle designed for light-duty recreational and utility purposes. It features a 124cc, air-cooled, single-cylinder, 4-stroke engine, which provides a balance of power and efficiency suitable for beginner riders and casual users. The engine is paired with a fully automatic CVT (Continuously Variable Transmission) that simplifies operation by eliminating the need for manual gear shifting, making it accessible for riders of all skill levels.

The Grizzly 125's suspension system includes an independent double wishbone with 3.9 inches of travel in the front and a swingarm with 3.3 inches of travel in the rear, ensuring a smooth and stable ride over various terrains. Its braking system comprises dual drum brakes in the front and a single drum brake in the rear, providing adequate stopping power for its size and weight.

The chassis is constructed from a durable steel frame that ensures longevity and robustness. The ATV's dimensions contribute to its maneuverability, with an overall length of 1,650 mm, width of 880 mm, and a height of 980 mm, along with a seat height of 740 mm, which provides a comfortable riding position. The vehicle's dry weight is approximately 139 kg, making it easy to handle and transport.

The fuel tank has a capacity of 7 liters, offering a reasonable range for extended use without frequent refueling. Additional features include a front carry rack and a rear cargo rack, enhancing its utility for carrying gear and supplies. With its blend of user-friendly features, durability, and Yamaha's reputation for quality, the YFM125S Grizzly 125 remains a popular choice in the small-displacement ATV segment.

Yamaha YFM125S Grizzly 125 2004 F.A.Q.

How do I change the oil on my Yamaha YFM125S Grizzly 125 2004?

To change the oil, warm up the engine for a few minutes, turn it off, and place a pan under the engine. Remove the oil drain plug and let the oil drain completely. Replace the drain plug and remove the oil filter. Install a new oil filter and fill the engine with the recommended oil type and quantity.

What type of spark plug should I use for the Yamaha YFM125S Grizzly 125 2004?

The recommended spark plug for the Yamaha YFM125S Grizzly 125 2004 is NGK CR6HSA. Ensure to check the gap and adjust if necessary to the manufacturer's specification.

How often should I check the air filter on my Yamaha YFM125S Grizzly 125?

Check the air filter every 20 hours of operation or once a month. Clean or replace it if it's dirty or damaged to ensure optimal engine performance.

What is the recommended tire pressure for the Yamaha YFM125S Grizzly 125 2004?

The recommended tire pressure for the front tires is 4.4 psi, and for the rear tires, it is 3.6 psi. Always check the tire pressure when the tires are cold.

How do I troubleshoot electrical issues on my Yamaha YFM125S Grizzly 125?

Start by checking the battery connections for corrosion or looseness. Inspect the fuses and replace any that are blown. Check the ignition switch and wiring for any visible damage or disconnections.

What should I do if my Yamaha YFM125S Grizzly 125 won't start?

Ensure the fuel valve is open, the engine stop switch is in the 'run' position, and the transmission is in neutral. Check the battery charge, spark plug condition, and fuel level. If all else fails, consult a professional technician.

How do I adjust the chain tension on the Yamaha YFM125S Grizzly 125 2004?

To adjust the chain tension, loosen the rear axle nuts. Adjust the chain tensioner bolts evenly on both sides until the chain has about 1-1.5 inches of slack. Tighten the axle nuts securely.

What maintenance should be performed regularly on the Yamaha YFM125S Grizzly 125?

Regular maintenance includes checking and changing the oil, inspecting the air filter, checking tire pressure, lubricating moving parts, inspecting brakes, and checking the battery. Follow the user manual for detailed maintenance intervals.

How can I improve the fuel efficiency of my Yamaha YFM125S Grizzly 125?

To improve fuel efficiency, maintain proper tire pressure, ensure the air filter is clean, use the recommended oil, and avoid carrying excessive weight. Regular maintenance checks will also help.

What should I do if the brakes on my Yamaha YFM125S Grizzly 125 feel spongy?

If the brakes feel spongy, check for air in the brake lines and bleed them if necessary. Inspect the brake pads for wear and replace them if they are worn out. Also, check the brake fluid level and top it up if needed.