Transom

[Facility Dude]

Hello;
I have a 70hp E70ELCIM motor and was wondering why there are several different size orifices listed for the carburetor based on the height of the transom? I will be ordering parts soon and want to know enough to get the right ones!
Thank You in Advance for any support you can supply.........

[boats.net]

The one is for the 70hp (68, 42, 52) the others are for the 75hp models.