I just bought a boat with a 200 2 stroke mercury, had a a jet pump on a 20 inch shaft motor. The motor came with a bay kit to make it a 25 inch shaft but the kit is from an older model (dont know what year) but everything seemed to be going together real good until I tryed to put the shaft through and the hole where the shaft needs to go in is too small. The kit didn't come with a instruction manual, so not sure if there is any mods that are going to have to be made to work or a different shaft extension to buy. Anyone ever run across this or have any suggestions?