Yamaha TT-R125S, TT-R125ES, TT-R125LWS, TT-R125LWES 2004 Owner's Manual

Yamaha TT-R125S, TT-R125ES, TT-R125LWS, TT-R125LWES 2004 manual cover

Pages 288

Year 2004

Language(s)

of 288

Yamaha TT-R125S, TT-R125ES, TT-R125LWS, TT-R125LWES 2004 Specification

The 2004 Yamaha TT-R125 series, comprising the TT-R125S, TT-R125ES, TT-R125LWS, and TT-R125LWES, presents a range of off-road motorcycles designed for youth and beginner riders. These models are powered by a 124cc, air-cooled, SOHC, 4-stroke, single-cylinder engine that provides reliable performance and ease of maintenance. The engine is mated to a five-speed manual transmission, offering riders precise control over power delivery. Each model features a compact steel frame that ensures durability and stability, making them suitable for various terrains.

The TT-R125S and TT-R125ES share similar dimensions, with the latter including an electric start for added convenience. Both models come equipped with a 31mm telescopic front fork and a single rear shock, providing 7.1 inches of front suspension travel and 6.6 inches at the rear. The braking system consists of a 220mm front disc brake and a 110mm rear drum brake, ensuring reliable stopping power.

In contrast, the TT-R125LWS and TT-R125LWES models offer larger wheels—19 inches at the front and 16 inches at the rear—compared to the 17-inch front and 14-inch rear wheels found on the standard versions. These models also feature an upgraded suspension system, with 7.1 inches of travel at the front and 6.6 inches at the rear, enhancing their capability to handle rougher terrains. The LW models include both kick and electric start options, catering to a broader range of rider preferences.

Aesthetically, the 2004 TT-R125 series features a sleek, motocross-inspired design with durable plastic bodywork available in Yamaha's signature blue color. With a seat height ranging from 30.5 to 31.7 inches and a dry weight between 172 and 183 pounds, these bikes offer a comfortable riding experience for younger or smaller riders. Overall, the 2004 Yamaha TT-R125 series combines robust engineering with user-friendly features, making it an excellent choice for off-road enthusiasts.

Yamaha TT-R125S, TT-R125ES, TT-R125LWS, TT-R125LWES 2004 F.A.Q.

What is the recommended maintenance schedule for the Yamaha TT-R125 series?

Regular maintenance for the Yamaha TT-R125 series includes changing the oil every 6 months or 1,000 miles, cleaning the air filter every 3 months, checking and adjusting the chain monthly, and inspecting the brakes, tires, and suspension regularly.

How do I troubleshoot starting issues on a Yamaha TT-R125?

To troubleshoot starting issues, check the battery charge and connections, inspect the spark plug for wear or fouling, ensure the fuel is fresh, and verify the choke is functioning correctly.

What type of oil should be used in the Yamaha TT-R125 models?

Use a high-quality 10W-40 or 20W-50 motorcycle-specific oil designed for wet clutches in the Yamaha TT-R125 models.

How can I clean and maintain the air filter on my TT-R125?

Remove the air filter, wash it with a mild detergent, rinse thoroughly, let it dry, and apply air filter oil before reinstalling. Inspect the air filter for damage and replace if necessary.

What are the common issues with the Yamaha TT-R125 clutch and how can they be resolved?

Common clutch issues include slipping, sticking, or excessive play. Adjust the clutch cable for proper tension, inspect the clutch plates for wear, and replace if necessary. Regularly check and maintain the clutch cable lubrication.

How do I adjust the chain tension on a Yamaha TT-R125?

To adjust the chain tension, locate the chain adjusters on the rear swingarm, loosen the axle nut, and turn the adjusters evenly until proper tension is achieved. Ensure the chain has about 1 to 1.5 inches of slack in the middle of the chain run.

What steps should be taken to winterize a Yamaha TT-R125?

To winterize a Yamaha TT-R125, clean and lubricate the bike, drain or stabilize the fuel, remove the battery and store it in a cool, dry place, and cover the motorcycle with a breathable cover to protect it from dust and moisture.

How can I improve the suspension performance on my TT-R125?

To improve suspension performance, consider upgrading the fork springs or adding preload spacers, adjusting the rear shock preload, and ensuring the suspension components are clean and well-lubricated. Regularly check and adjust the suspension settings according to your riding style and conditions.

What is the proper procedure for changing the spark plug on a Yamaha TT-R125?

To change the spark plug, remove the spark plug cap, use a spark plug wrench to unscrew the old plug, check the gap on the new spark plug to ensure it meets specifications, and install it by hand before tightening it with the wrench. Reattach the spark plug cap securely.

How do I address overheating issues in my Yamaha TT-R125?

To address overheating, ensure the cooling system is functioning correctly, check that the radiator is clean and unobstructed, verify the coolant level, and inspect for any leaks. Additionally, check the oil level and ensure it's clean and adequate.