Hey everyone, I just recently picked up a 540 with a blown kohler motor, instead of rebuilding it i'm going to replace it. I've already picked up a service manual and been studying it. I've been looking at a predator motor at harbor frieght, its 22 hp v-twin basicly its a knock off honda motor. I'm sure i'll have to do some fabricating to make work. I'm wondering if anyone has any advise. i've already searched though the forum reading everyone else's swaps but no one has used one of these motors. The one thread i read had said that the honda repower motor gets rid of the spine coupler and uses a chain drive, is that because the output shaft on the honda is higher/lower then the pump's drive shaft? Thanks