Yamaha TT-R125EX, TT-R125LX, TT-R125LEX 2008 Owner's Manual

Yamaha TT-R125EX, TT-R125LX, TT-R125LEX 2008 manual cover
Pages 289
Year 2008
Language(s)
English en

Yamaha TT-R125EX, TT-R125LX, TT-R125LEX 2008 Specification

The 2008 Yamaha TT-R125EX, TT-R125LX, and TT-R125LEX motorcycles are part of Yamaha's renowned off-road lineup, designed to deliver a reliable and exhilarating riding experience for both novice and intermediate riders. All three models share a robust 124cc air-cooled, SOHC, 4-stroke engine that provides a smooth power delivery, making them ideal for trail riding and off-road adventures. The engine is paired with a five-speed manual transmission, ensuring precise gear changes and optimal control over various terrains.

These models feature a compact steel frame that provides excellent durability and stability, while the long-travel suspension system, which includes a front telescopic fork and a rear monocross setup, offers superior shock absorption and handling across rough surfaces. The TT-R125EX, TT-R125LX, and TT-R125LEX are equipped with knobby tires that enhance traction and control on dirt tracks and uneven paths.

The braking system comprises a front disc brake and a rear drum brake, delivering reliable stopping power under different riding conditions. Ergonomically, the bikes are designed with a comfortable and low seat height, making them accessible to a wide range of riders. The overall lightweight construction enhances maneuverability and ease of handling, further contributing to an enjoyable riding experience.

While the models are largely similar, the TT-R125LEX variant includes an electric start feature for added convenience, eliminating the need for a kick start. The design aesthetics of the bikes reflect Yamaha's signature style, with durable plastic bodywork and a sporty appearance. Overall, the 2008 Yamaha TT-R125EX, TT-R125LX, and TT-R125LEX offer a reliable, user-friendly, and performance-oriented option for off-road enthusiasts.

Yamaha TT-R125EX, TT-R125LX, TT-R125LEX 2008 F.A.Q.

How often should I change the oil in my Yamaha TT-R125EX?

For optimal performance, it's recommended to change the oil every 20 hours of riding or every 6 months, whichever comes first. Always refer to the owner's manual for specific guidelines.

What type of fuel is recommended for the TT-R125LX?

Yamaha recommends using unleaded gasoline with a minimum octane rating of 87 (RON 91) to prevent knocking and ensure smooth engine performance.

How can I adjust the chain tension on my TT-R125LEX?

To adjust the chain tension, loosen the rear axle nut, then turn the chain adjuster bolts on each side of the swingarm evenly. Aim for about 1.2 inches of slack at the midpoint of the chain. Tighten the axle nut after adjustment.

What are common causes for the TT-R125EX not starting?

Common causes include an empty fuel tank, a clogged fuel line, a dead battery, or a faulty spark plug. Ensure all these components are in good condition and functioning properly.

How do I clean the air filter on my TT-R125LX?

Remove the air filter cover, take out the air filter, wash it with a mild detergent, rinse thoroughly, and let it dry completely. Apply air filter oil before reinstalling it.

What is the recommended tire pressure for the TT-R125LEX?

The recommended tire pressure is 15 psi for the front tire and 15 psi for the rear tire. Check tire pressure regularly to ensure safety and performance.

How do I adjust the suspension on my Yamaha TT-R125EX?

The TT-R125EX features adjustable rear suspension. Use the preload adjuster on the shock absorber to set the desired stiffness based on your weight and riding conditions.

Why is my TT-R125LX engine overheating?

Engine overheating can be caused by low oil levels, a clogged air filter, or a blocked exhaust. Ensure all these components are clean and at the correct levels.

How can I improve the performance of my TT-R125LEX?

You can improve performance by upgrading the exhaust system, using a high-flow air filter, and ensuring regular maintenance such as oil changes and spark plug replacements.

What regular maintenance is required for a TT-R125EX?

Regular maintenance includes checking and changing the oil, inspecting the brakes and tires, cleaning the air filter, adjusting the chain tension, and ensuring all bolts are tight.