Originally Posted by
SteveP
Given that it's made by a different manufacturer, I wouldn't assume that the same rule applies to these engines unless it's stated in the instructions or by a manufacturer's rep.
I agree, I would just find out for sure if it is not in the directions just because they seem to ship all their motors ready to run on 25%, thats was all I was saying, but you are correct, I would not assume anything. If he needs to run it before he gets an answer, adding the shim would not hurt anything.