[Product Description] Valve Spring Inner x 8pcs Valve Spring Outer x 8pcs
TYPE-S: Marking color orange Made in Japan (by Murata Spring) Valve springs with egg-shaped cross section Improved fatigue limit by more than 50
[Recommended lift and example of camshafts] ・Minimum cam lift 8.2mm to KAWASAKI Z1, Z2, Z750-1000J, Z1000R, Z1100GP series stock cam
・Maximum cam lift up to 9.5mm Yoshimura ST1 (in 9.5mm) Webcam 365(9.271mm) KENT KAW10 street(8.99mm)
*Z series stock outer shim retainers can be used. For inner shim retainers, please consult with the camshaft manufacturer.
Type S is for Z series and J series stock camshafts and commercial camshafts which are generally called ST1. The target model is all Z series from Z1 to GPz1100.
Silicon chromium steel oil tempered wire is used. By reducing the weight and friction of the valve springs, the valve train works smoother and more accurately, which not only improves performance but also minimizes wear and tear. The margin of contact between lines is large enough to avoid damage.It is not easy to reduce the valve load, and the performance of the engine can be maintained longer.
Egg-shape valve springs with modern technology for optimum performance
ES "Egg Shape" is an abbreviation of "Egg Shape" in Japanese. The air-cooled Z engine was designed nearly 50 years ago, and the various internal parts that make up the engine are still the same as the original design. Not only valve springs, but also the design, material, manufacturing method, heat treatment and surface treatment technology have evolved remarkably in the past 50 years. ES valve springs are the result of modern technology, and with the help of Murata Spring, one of Japan's leading valve spring manufacturers, we have been able to offer a wide range of valve springs This part has been developed as a part that can bring further optimization to the air-cooled Z engine. Reliable valve actuation, low friction and durability.The theme is not "enhancement" but "optimization".
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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