[Yosemite Sam]

I myself have never seen a Kohler engine with a 110v starter on it, not saying that they don't make such a thing, I've just never seen one.

If Kohler ever did use such a thing... You would first need to find out where it mounts to on the engine. If it mounts in the same place as the 12v starter then you would most likely be stuck with either/or. If it mounts in a different place and if there is enough room for both, then you would need to acquire the 110v starter and all of the parts that are associated with this type of starter. Then you would most likely need to have an area in the bearing plate machined to accommodate the starter drive and the blower housing would also need to be modified.

Then you would need to find a way to actuate the starter.

If the required parts were ever made, this sounds like it could be an interesting project. In the end, I'm not sure it would be worth the effort, but that would depend on the user.