The YS mount and the Yamada mount are the same item. This mount requires a nose ring be used. You will damage the mount, the engine and likely the model if you do not use a nose ring.

You can get it by ordering at Central Hobbies.

406-259-9004.

If they don't have any in stock then they can order it. This mount is a rare item and can be ordered if they don't have it stock. This mount will not be on their website. BUT THEY CAN get them. The quantities of these mounts are very limited and the price is pretty high. However it is a good mount. The intend purpose is in F3A pattern models. Not that it can't be adapted to other applications but this is the application and then the model must be built to accommodate it. Its not a normal engine mount.

See the drawings below of how it works.

Troy Newman
Team YS Performance