[seruzawa]

I can tell you first thing that you should put any thought of "rebuilding" a Japanese motorcycle out of your mind. The costs of internal engine parts are so astronomical that you would be wasting your time. From experience I'd guess that a full rebuild could cost you $2000. A new set of pistons and rings alone is $300 for a Nomad! Intake valves $31 ea, exh valves $46ea, guide $15! So far you'd be into it $500 and there's more parts than that needed for just the top end. I can get a set of excellent forged pistons (8)for a freaking 350 small block for less than the Nomad's! Then you've got to have a machine shop pull the crankshaft apart to replace the bearing amongst other difficult procedures. By then the bike won't be worth much. Your main option would be to try to find a decent engine in a junkyard from a Nomad that had been crashed and had few miles on it. Those are very common... crashed bikes with low mileage.



The last thing on a motorcycle designer's mind is providing for rebuilds. The manufacturers don't want you to rebuild bikes they want you to buy a new one. Japanese bikes are purposefully built as throwaways. Japanese bikes have many virtues but extending life through rebuilds is not one of them.



Just ride it til it quits and then get another bike.



Better yet, sell it now while it's still worth something and get a Speed Triple.