Size: 54mm x 54.5mm (Bore x Stroke)124.8cc SOHC2 Valve Hyper Head (Valve Diameter IN: Φ25, EX: Φ22) Compression Ratio: Approximately 10.5 (It is adopted to New Piston Φ54 of Cosworth Shape.) Recommended Carburetor: PC20/CR-mini/PE20/PE24/PE28
*Please use the high-octane fuel. *It requires crankcase boring (Diameter 56.6 to 56.8mm, depth 27mm). *It requires installation together with the outer rotor kit, secondary side clutch kit (disc 4pcs. or more), reinforced oil pump, oil cooler. *The front tire and head might interfere depending on the combination of the underbody parts because this product has a cylinder length approximately 6mm long. *The product on the attached photo is only for an image. Please use it as a reference.
Let's enjoy touring with a MONKEY! It debuts hyper head 124.8cc touring! The DAYTONA's thinking engine is an engine that excels in comfort feeling and durability. It can be enjoyed with low and medium rotation in order to generate a thick torque from low rotation. It also achieves low vibration with adoption of SP crank. It emphasizes durability, and adopts a low compression ratio (10.5:1), a low profile rotation-oriented camshaft profile, and a high durability plated cylinder.
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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