Hi guys. Me and my mechanic have run out of ideas so I put it to the forum. I have a 89 Honda spada that only revs to 7000rpm when cold and may get to 7500rpm once warm. My mechanic pulled the carby out and stripped and cleaned it. Cleaned the fuel lines and tank. Checked engine compression and timing, fully serviced bike (oil, plugs and filter) replaced black computer (2nd hand one I think that controls spark firing) and still has the same problem. It's killing me now because I've almost spent more repairing the bike then what I paid for it only months ago! Has anyone come across a similar problem before?!