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Product # 45427
2.8 (4 reviews)92.38 USD (14,727 JPY)
Delivery Information
This item is discontinued.
BW'S (BWS) 1998
98 [Frame No.]SA02J-100101 or later
JOG [YV50Z]
00 [Frame No.]SA12J-
JOG CASUAL (Casual)
98 [Frame No.] SA01J-
JOG CASUAL (Casual)
99 [Frame No.]SA01J-
Displacement (71cc) = Bore Dia: 48mm x stroke length: 39.12mm
**Registration, license, insurance and other conditions must be changed for riding on public roads with the Big Bore Kit installed.
*If the engine is combined with a high speed type chamber for 50cc, the engine will rev even higher and the cooling limit of the air-cooled engine will be exceeded, causing overheating and seizure.Please use a commercial chamber with a maximum speed of 10, 500 rpm.
*In case of using this product with the exhaust gas countermeasure models released after September 1999, the stock carburetor and exhaust will cause abnormal overheating of the catalyst and damage the engine.98 or earlier stock carburetor (replace main jets with #85-90), or DAYTONA big carburetor kit, and a big bore exhaust with a max rpm of 10.500 rpm or less are required.
*Use Motrex RACINGPOWER2T, Castrol POWER1TTSRacing, Wachow's V2R or Elf Moto 2XT-Tech for 2 stroke oil.Also, if your engine has a high RPM setting due to the installation of a chamber, please use a gasoline mixture (or fuel injection and gasoline mixture).
*If you are using a stock carburetor, you need to set the main jet and jet needle.The main jet should be #5-#10 up with stock air cleaner and the jet needle should be 0.1 step down in the clip position.
[When using the Big Bore Kit on public roads, be sure to observe the following three points.]
3. Confirm that the voluntary and compulsory insurance covers the bike with the new displacement.
*When Daytona Big Bore is installed, stock exhaust and stock carburetor of the model which complies with the exhaust gas regulation after September 1999 are not allowed.The catalyst will overheatand damage the engine.
*The only stock exhaust (without catalytic converter) that can be installed on the emission control model (99/9-) is the stock JOG-Z II〈5EM1〉 (#5EM-14610-00)..
Here is the instruction manual.
[Repair parts]
Piston Kit (STD)(47240)
Piston ring set (48mm)(47111)
Piston pin clip (2 pcs)(47242)
Piston pin (10mm)(47243)
Gasket set(47241)
Exhaust gasket(63602)
Piston unit (48mm)(47244)
Cylinder (48mm)(48433)
Cylinder head(48484)
Display sticker for mopeds (37256).
The fastest way to power up!
Big bore kit with cylinder head for overwhelming power and torque.
Stock cylinder diameter: 40mm, while the Super DRAG Big Bore has a cylinder diameter of: 48mm.
The cylinder bore has been enlarged to a maximum of 48mm to achieve the maximum displacement.The exhaust port and intake port design has been redesigned to fit the new bore size, and a cylinder head is included to allow for the larger combustion chamber of the 48mm piston.
In combination with the stock exhaust, it provides strong acceleration.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
Reviews with image
![It attached to the aprio type 2. <br>Unlike made in [ cheap ] Taiwan, structure is polite. <br>There is also a description and I think that beginners can also work. <br>Since the gasket is also attached two sheets at a time, it can change with specificatio](https://st-img.webike-cdn.net/st/photo/article/65/1281171580965M.jpg)
Fits:YAMAHA BW'S (BWS) 1998 98 [Frame No.]SA02J-100101 or later, YAMAHA JOG APRIO (APRIO) 00 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 01 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 94 [Frame No.] 4JP-577010101 to 6221000, YAMAHA JOG APRIO (APRIO) 94 [Frame No.]4JP-6707101 to 6715000
Mar 29, 2016
I used it for Bore up of Zr. I think that it is a part that anyone can exchange if I carefully read the Instruction Manual. What I can say is that it is better to run separating + mixing after break-in. Even if the burning color of Plug is best, it will burn out if the amount of Oil is not enough.
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Fits:YAMAHA BW'S (BWS) 1998 98 [Frame No.]SA02J-100101 or later, YAMAHA JOG APRIO (APRIO) 00 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 01 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 94 [Frame No.] 4JP-577010101 to 6221000, YAMAHA JOG APRIO (APRIO) 94 [Frame No.]4JP-6707101 to 6715000
Feb 19, 2016
I thought it was not enough power I thought.
If I experience this kit from 50cc NORMAL, I think that I felt a considerable sense of power, but in my case... NRMagic56. Since it is a recombination from 9cc Bore Up Kit, I felt a little Torque up even though it was 71 cc.
Naturally, the maximum speed is almost unchanged.
Again, I thought that this Bore Up Kit of DAYTONA is a Kit for public roads that emphasized durability.
Port etc. I think that durability is enough if we do not process. Normal cab - Because it is made according to Normal muffler.....
Fits:YAMAHA BW'S (BWS) 1998 98 [Frame No.]SA02J-100101 or later, YAMAHA JOG APRIO (APRIO) 00 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 01 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 94 [Frame No.] 4JP-577010101 to 6221000, YAMAHA JOG APRIO (APRIO) 94 [Frame No.]4JP-6707101 to 6715000
May 13, 2015
It is 71cc Bore up for JOG, but Head volume is about 10cc with Plug included.
GasketQuantity : 1pc. There is no compression ratio 6 even if it is assembled with ... ...
OEMHead will be in 11th place and the port shape is beautiful but shape and timing are subtle.
The next 3YJ reformers are better Response, and it is faster to sharpen the port to Taiwan Bore up of about 6000 yen and adjust the compression ratio.
Head is not usable with a volume Large rinse and it is not something to buy more than 10,000 yen as it just does not make it fast so fast to install it as Instruction Manual.
Fits:YAMAHA BW'S (BWS) 1998 98 [Frame No.]SA02J-100101 or later, YAMAHA JOG APRIO (APRIO) 00 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 01 [Frame No.]SA11J-, YAMAHA JOG APRIO (APRIO) 94 [Frame No.] 4JP-577010101 to 6221000, YAMAHA JOG APRIO (APRIO) 94 [Frame No.]4JP-6707101 to 6715000
Aug 18, 2010
It attached to the aprio type 2.
Unlike made in [ cheap ] Taiwan, structure is polite.
There is also a description and I think that beginners can also work.
Since the gasket is also attached two sheets at a time, it can change with specification.
Although bore up was carried out and heat Darre of KONO summer was anxious, for the moment, it is OK.
A shake down is required after constructing.
Let's also raise the grade of oil after carrying out bore up.
Although after attachment is based also on the combination of a muffler, it becomes quick certainly.
It is safe even if it rides for a long time, since there are also replacement parts.
Review detail
