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At DD Pistons, our mission is to provide high-quality Yamaha piston kits specifically designed for the 1971-72 Yamaha JT-1 and JT-2 mini enduro. We are dedicated to serving riders by offering top-notch products and exceptional customer service. These pistons were designed by Wiseco Pistons using an original JT model piston. Wiseco has been a leader in in the motorcycle industry for many years and their quality is second to none. They took a factory JT model piston and redesigned it to be better and stronger than the original piston while keeping the weight to a mere two grams more. these come shipped to you as a complete kit. Piston, rings, bearing, wrist pin, and clips.
Recommended piston to cylinder wall clearance is 0.002 to 0.0025
Break in procedure:
Warm engine under low or zero load. Allow engine to fully cool down and repeat this process 3 times.
Ride gently for the first few tanks of gas and do not lug or over rev the engine. This will give the best results and longevity from your new piston
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We love our customers, so feel free to email anytime, especially if you have questions about our 1971-72 Yamaha JT-1 or 1971-72 Yamaha JT-2 models. We will respond within 48 hours, and we're also here to help you find the best Yamaha piston kits.
DD Pistons
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