I got this bike in 1987 and we grew up together… too many fond memories.
I don’t even now how many kilometers I’ve done with it, probably +200.000…
750cc, 3 cylinder DOHC, 64bhp @ 7,500rpm
With three disc brakes, final shaft drive and cast aluminium wheels, it was quite “haute gamme” at it’s time.
Has had numerous restorations, last one in 2013, did all but not the top end of the engine.
Now, with time to spare, it’s time has come.
Pistons, ring and cylinders are worn…
They were rebuild it 1997 and have something like 100.000km on them.
Valve stem seals were quite hard and it was burning some oil.
I have a spare cylinder block that is in very good nick, waiting for new rings and a gasket set to arrive.
Now, why is that one intake valve black ?
As I said, rings were worn and valve stem seals were hard, too much oil coming in the cylinder?
Otherwise the head is in good shape, cam journals are clean, so it will be reused.
Will keep posting as I progress.