SCUT105cc Bore Diameter: 52mm Compression ratio: 12.5: 1 Included Camshaft: 10/15D Intake: 21.5mm x 2 / exhaust: 18.5mm x 2 Valve Stem Shaft Diameter: Intake and exhaust both 4.0mm
*It is possible to install to CD90 stock engine, but you need to change the carburetor, clutch and exhaust.These special products are not available at SP Takegawa.Please purchase with understanding. *Depending on the lot, the product may be delivered with the old price and label with the old JAN code before the price change.
■Features of Super Head 4V+R (1 Cam 4 Valve) Compared to the SP Takegawa Super Head +R's large diameter 2 valves, the SP Takegawa Super Head +R has 2 intake valves and 2 exhaust valves, which increases the valve curtain area and improves the intake and exhaust efficiency more than the large diameter 2 valves.In addition, the head shape was designed to balance the center plug, valve pinching angle, combustion chamber shape, and port shape in order to achieve high power output and sustained output characteristics in the high RPM range, which is the biggest feature of the Super Head. By adopting 1 cam and 4 valves, it was possible to make it as light and compact as possible, and at the same time, it condensed the performance as the strongest SOHC head. New shape super head 4 valve + R body The round shape of the cylinder head suits the Monkey style and enhances the custom image of the vehicle. Each head cover is made of die-cast and barrel polished to give a beautiful appearance to the cylinder head. Valve Features Valve Springs: The use of unequal pitch prevents surging at high RPM. IN / EX Port Features The port diameter is optimized for SP Takegawa's 3D shaped manifold.In addition, by installing it together with the 3-dimensionally shaped manifold, it enables a smooth intake effect from the carburetor to the combustion chamber without resistance, and the performance of the cylinder head can be maximized. Roller rocker arm By adopting the roller rocker arm, the output performance of the Super Head +R is maximized and the output in the mid to high speed range is increased and the output in the high rpm range is maintained, which is the characteristic of the roller rocker arm.The roller rocker arm reduces the frictional resistance with the camshaft that occurs with the slipper type rocker arm (stock part type), and the roller bearing in the rocker arm follows the cam profile smoothly from low to high RPM. M8 Spark Plug The M8 spark plug was adopted in conjunction with the optimum valve pinching angle and the compactness of the head due to the 4-valve system. ■Hollow camshaft (auto decompression mechanism) Auto decompression function The engine can be started with a light kick force even for vehicles with large displacement engines. Easy camshaft removal: The camshaft can be removed without removing the rocker arm. There are 4 types of camshafts, 10/15D, 15/20D, 20/25D and 25/30D. You can change the camshafts according to your application and enjoy the riding performance. ■Φ52 H Cylinder / Piston 105cc can be installed without modification of the crankcase. The Φ52H cylinder is an aluminum steel sleeve cylinder. The cylinder is equipped with a temperature sensor as standard.You can measure the cylinder temperature by purchasing SP Takegawa's thermometer built-in meter or thermometer. Φ52H Cylinder: M5 Temperature Sensor
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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