Europa-List: rough running 912S

[Richard Iddon <riddon@sent.com>]

I have just fired up my 912S after new sprag clutch, fitting soft start, new 
plugs
and 6 month lay up. It has always been quite smooth before but now it feels
very rough. I pulled the plugs and the two from no. 1 cylinder are black and
sooty whereas all the others are clean / whitish. Carb balance is not perfect
but not at all bad. 

Any idea's why this should be and where to start would be appreciated.

Richard Iddon.

G-RIXS