*Daytona specified maximum RPM: 10,000rpm *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 carburetor and exhaust must be replaced to achieve the specified performance. *Due to high compression, use high-octane gasoline.
●Big fins for improved heat dissipation. ●Lightweight cast pistons of the Cosworth type are used.The rigidity around the pin boss is improved.
Big bore kit with cylinder head for reasonable price, excellent performance and durability. Adjusted IN / EX port shape, compression ratio 10.7: 1⇒11.0: 1 for improved performance throughout the entire range (compared to Daytona). The power is increased by 3 to 4 times compared to the stock power. Laser marking of DAYTONA logo on cylinder head. YD24 / 28 carburetors can be installed by lowering the height of the manifold mounting area. NEW Hyper Head Big Bore Kit 88cc, Mega Oil Pump, Reinforced Primary 3 Clutch and Reinforced Cam Chain (exclusive for entry package) are included in this set.
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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