Can anyone offer any advice???
Have just had lots of work done to a 1979 KZ1000ST, head gaskets etc. It was running wierd and rebalanced carbs and found a small hole in vacuum tap diaphragm, ok, much improved but at aroun 5000-6000 revs it runs lumpy and a little hesitant, air filter ok, plugs new (in good condition), any body got a clue??? possibly points???