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112.43 USD (17,923 JPY)
Webike Point: +538 pt
(3.37 USD)
Delivery Information
Temporarily out of stock.
Restock around 11th Jun. 2026
FITMENT
YAMAHA
Open Fit Model Information Table
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JOG
5EM
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JOG
5BM
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JOG
5PT/5SW
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JOG
5KN/5SU
See all
YAMAHA
Product detail
ATop Original
[Set components]
・Cylinder
・Cylinder head
・Piston
・Piston pin
・Circlip
・Piston ring
・Bale Gasket (paper)
・Base Gasket (Metal)
・Exhaust gasket
・Head gasket
Bore Diameter: 47.6Φ
Displacement: 69.7cc
**There may be changes in product specifications due to the manufacturer's reasons.
.
This is ATop original aluminum big bore kit for JOG 50 horizontal engine.
It is made of all aluminum and plated with nicasil.
Since it is made of aluminum, the cooling performance is very high, and since it is all aluminum, the durability is hardly damaged by the thermal expansion etc. due to the difference of materials.
Also, the exhaust port has a large diameter center rib, so you can be sure of high power.
The base gasket comes with a paper type gasket as well as a metal type gasket, allowing for a wider range of settings.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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