Front cylinder from 750 monster or supersport required for Manx engine project, It has to be from the 99 onward three yellow wire alternator model, the same engine was used commonly with carbs on the Monster and fuel injection on the supersport models. A 600 cylinder will do as a last resort and I will bore and nicasil to match the pistons. Not required any more, the pantah cylinder heads, I have found some, so you can all stop looking now. Cheers Louigi