I'm considering dismantling my RM 250 engine ('82) to replace the engine cases (cracked at swing arm boss) with the ones I bought off of Fleabay. I'm a decent mechanic, I'm putting together a 360 for my old Ford right now and I've rebuilt carbs. and such over the years so I'm no slouch to say the least. My question is: Do you think it's possible for a decent mech. like myself to take this thing apart and put it back together without a manual? I have a knack for remembering how things came apart and pay great attention to what I'm doing. What think ye? I've heard it's really not hard at all. If you've never taken one apart save your advice please. ;)