27-02-14, 09:03 PM
My box eye ran similar when i picked it up.. Low mileage bike that had been stood for lots of its life.. One downpipe notably cooler than the rest from start up off choke and on idle).. Ran fine above 4krpm.. Turned out a blockage in carburettor pilot jet on number 1 i think, or is it 4? :rolleyes .. well whichever cylinder is lowest when on side stand 
Better to have it and not need it, than to need it and not have it..