●Specifications: High Comp Pistons Roller Rocker Arms/Decompression Camshaft ●Package Size: Height 255mm X Width 255mm X Depth 170mm ●Reference weight: Approx. 3100g
*Camshafts with auto-decompression mechanism for roller rocker arms and roller rocker arms are available for bikes up to 2009 model year. *When installing this product, be sure to install SP Takegawa's FI-CON 2 (injection controller) (sold separately) to correct the fuel injection amount. *Use of a bored-up engine without the FI-CON 2 may cause a failure.Do not use in combination with parts made by other companies. *S-stage 156cc cannot be registered as a class 2 moped because its displacement exceeds 125cc. *Depending on the lot, the product may be delivered with the old price and label with the old JAN code before the price change.
The injection controller for the Cygnus X (SE44J/28S) now features the "FI-CON 2" which allows you to increase the rev limit RPM and fine tune the built-in correction map!! The Hyper S-stage Big Bore Kit is a great value kit that includes the S-stage Big Bore Kit 156cc and recommended parts such as FI CON2 for fuel injection correction, high speed pulley, weight roller, clutch center spring and spark plugs. By installing the Hyper S Stage Big Bore Kit, you will be able to feel the sharp acceleration that you cannot get with the stock engine. Compression ratio 13.6: The high comp type specification of 1 further improves the output characteristics in the mid to high speed range. The cylinder is an all aluminum ceramic cylinder with excellent durability, airtightness and heat dissipation. The attached sports camshaft maximizes the performance of the stock cylinder head, and together with the increased displacement to 156cc, maximizes the engine performance. The roller rocker arm reduces friction loss by using a roller for the cam sliding part of the rocker arm, and enables the cam to follow the cam profile smoothly from low to high speed rotation.Compared with the stock rocker arm, the power output at high rpm range is improved. The auto-decompression mechanism allows the engine to be started with a light kick for the kick starter and reduces the load on the battery when starting the engine for the starter. The included FI CON2 (injection controller) can easily correct the fuel injection volume without the need for external connection devices such as a PC, and you can enjoy the high power of 156cc immediately after installation and setting. The included high speed pulley and clutch center spring transfer the engine's power to the rear tires, allowing the heavyweight Cygnus X to accelerate quickly and reach maximum speed.
■S-stage big bore kit 156cc■ The stock cylinder head and crankshaft can be used as is, and the displacement can be increased to 156cc by changing the cylinder and piston. By installing the FI CON2 (Injection Controller) at the same time, it is possible to achieve a high output performance different from the stock. The cylinder is an all aluminum ceramic cylinder with excellent durability, airtightness and heat dissipation. The S-stage big bore kit is available with different pistons, rocker arms and camshafts. ◆Specification selection 1 Piston The piston has a compression ratio of 11.4: You can choose between the standard type with a compression ratio of 1.0 and the high-compression type with a compression ratio of 13.6: 1. Compared with the Standard, the High Comp further improves the output characteristics in the mid to high speed range. ◆Select specification 2 Rocker arm *Roller rocker arm is available up to '09 model year. You can choose between stock rocker arms and roller rocker arms (up to '09 models).The rocker arm interferes and cannot be installed on other bikes. The roller rocker arm reduces friction loss by using a roller for the cam sliding part of the rocker arm, and enables the cam to follow the cam profile smoothly from low to high speed rotation.Compared with the stock rocker arm, the power output at high rpm range is improved. ◆The camshafts with decompression mechanism are for roller rocker arms and are only available for '09 models. The sports camshaft improves the performance of the stock cylinder head and maximizes the performance of the stock engine, S-stage 156cc. The sports camshafts are available with or without auto decompression mechanism.In the case of the auto-decompression mechanism, the kick starter can start the engine with a light kick force, while the starter reduces the burden on the battery when starting the engine.
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