HELP!! 247 aircooled mono goes well but despite new OEM Dellorto with std jetting still 'knocks' on overrun as returns to tickover- tried an OKO but ran far too weak- (reccomended 28mm OKO too big for 212 motor?)
Now trying a 24mm Keihin - bit better but now wondering if ageing reeds may be problem? any ideas, or where to get reeds for this model?
Cheers, Paul