So I have a 98 speedster and last year the compression was about 130 on each cylinder. With that said I decide to rebuild the engines this spring. Couple of questions, first should I just do the top end or the complete motor? I have no idea on the hours on both engines but after will install an hour meter. I was told that I should just look at the top end rebuild. Second, should I remove the engines to do the rebuilds or just do them in the boat? I understand that taking them out will require me to have to align then again using some type of tool. How hard is that to do? What tool would I need and how much are they? If I take the engines out I will clean the inside of the engine compartment but if I leave them in I will save some work of having to take them out and putting them back in. Any suggestions on what people have found to be easier to do?