Well, having part exed a perfectly good (but unsuitable for my advancing years) hard tail Kawasaki750 trike for the vmax with IRS (and a suspected holed piston), I finally got 'round to stripping it last night. Guess what, it has a holed piston! So now I'm faced with two options - rebuild this engine (very time intensive as well as potentially expensive), or buy another. I'm leaning towards getting another for now (actually going to see one, leakdown test, sump off inspection), and rebuilding this later as time allows. My question is, has anyone here experience with the Yam vmax v4 1200cc engine? I haven't costed a new set of liners yet, but suspect they will be pricey. I could rebore it, but that means a full strip down, and an oversized set of pistons. (I have a good set of standard ones here). I'm tempted to go down the route of buying a top half and pulling the liners out of that - but will they come out in one piece? First things first I think, see if I can get this engine that's on ebay.