Special high camshaft to further improve the performance of the Big Bore Kit for stock heads. By changing the intake / exhaust timing and increasing the lift to the limit of the stock head, it was possible to increase the rpm while using the stock cylinder head. Power up the whole range from low speed to high speed.
●12V Monkey Rocker Arm (stock part) is required for Monkey R / RT. ●If you want to use it for 50cc, you need to modify the piston. ●The camshaft body is common to (25593) and (39191). ●The (25593) is equipped with the special valve spring set (26415) because the max. rpm exceeds the allowable range of the stock valve spring.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Up to now Nore cam & Spring Bore Up Kit + JetSetting and Limiter cutSpec.. The troubles with abnormal vibration of ValveSurging and awkward output characteristics were solved like a lie. Once there is a DAYTONA 75cc Bore Up Kit compatible product, but there is also a cheap Made in Taiwan88cc Bore Up Kit so far it has neatly turned upwards and the feeling of shaky going out has also disappeared. Durability is currently being confirmed at around 300 km per month with commuting + short touring one month. It is nice that Cam and Valve Spring are packaged together. It is saved to reduce one troubling Masching trousers.View Detail
The maximum high speed was extended and Power in intermediate speed went up considerably. Although inclusion was serious, the effect beyond it is acquired.View Detail
It was used for the monkey of the normal displacement (49 cc). Although changed from the high cam of JUN, Power is completely different!!! The characteristics of high rotation were good, and [ especially ] the torque of inside rotation also had the impression which rides easily thickly. Of course, the maximum high speed is also extended by the improvement of a high rotation characteristic!!! !. When attaching to 50 cc, it was a little troublesome that recessing work of the piston had to be carried out for reservation of valve clearance, but Power who wipes it out was able to be obtained. the influence of charging efficiency, or setting of a carburetor -- the time of a JUN cam -- # -- it fell about by ten. In addition, in the case of my monkey, by the attached valve spring, surging occurred at 11500 rpm, and it has avoided surging by using the strengthening valve spring of POSH.View Detail
It was used for the monkey of normal (49 cc). Although changed from the high cam of JUN, it says clearly and Power is completely different! Although it is natural, that Power of the high rotation area went up also has the torque in an inside rotation region rather than a JUN cam, and it rides easily by a torque fully. of course, the maximum high speed is also extended!!! being related with setting of a carburetor -- the time of the influence of important effectiveness, or a JUN cam -- # -- it fell about by ten. In attaching, it was a little troublesome that valve recess processing of the piston had to be carried out for reservation of valve clearance, but Power who wipes out the difficulties was obtained ^^View Detail
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