*This combination is designed for stock handlebars and drum brakes.The combination differs for vehicles with interchangeable handlebars and disc brakes. *Increases vibration and engine noise with increased bore. *Install an oil cooler and an oil temperature gauge to control the oil temperature.Continuous running at high temperatures (over 100°C) may damage the engine. *The maximum speed specified by us: 12.000rpm.(10.000 rpm for the primary clutch) *The exhaust must be replaced to achieve the specified performance. *Due to high compression, use high-octane gasoline. *Because of the increased power, it is recommended to combine with the following parts.If the following parts are used as stock parts, the engine may not be able to withstand the increase in power and may be damaged. ■Parts to be installed at the same time Primary side reinforced 3 disc clutch kit (95634) mega oil pump type2 (74670) Reinforced cam chain (77415)
NEW Hyper Head Big Bore Kit 88cc combined with easy to handle PC20 carburetor and power filter set. It is more economical than buying single items.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Screw scratching the Sprocket to Cam had rusted, and the precision of Screw stopping the guide roller of Cylinder was bad and it was not so good. After installation it will be a nice run Kit! 100 will come out normally! Engine sound is quite Large, but it is good as there is no problem driving.View Detail
It has passed 2 years since installation but it works smoothly without being particularly broken. However, when assembling, the distance between the holes of Screw attaching Camshaft Sprocket to High Camshaft was narrowing and there was an initial malfunction. View Detail
I bought it to Bore up MONKEY of Z50J. MONKEY's Bore Up Kit really comes out of many Manufacturers, but the deciding factor of purchase is
(1) Recommendation of friends riding MONKEY (2) All-in-one (3) Price
For the first Bore up in life, I bought KITACO's cheap sheet and assembled it while watching the cheat sheet and instruction manual. The manual also divides every part, so I think that it is easy to understand.
However, I think that we could not put together if there was no cheat sheet because of engine disassembly for the first time. I think that it is safe for those who purchase the cheat sheet for the first time purchase.
If possible, I think that it was even better if there was a procedure manual of Bore up in the manual.
Although it may be natural, a special tool is also necessary, so in order to complete Bore up, it will cost a certain amount of Gold. For myself, including Plug and Oil, it cost about 70,000 yen in this Bore up.
But I am still in the middle of it, but obviously it is not 50 cc.
I think that it was good to make this product out of a number.View Detail
It was my first Bore up this time, but it was installed without difficulty. I have not yet completed the break-in, but I feel that it's rising considerably from the start. I am looking forward to break inView Detail
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