On an old suzuki with float bowls like ours (without an overflow feauture) I retrofitted bowls from a later model with them. Now if a float sticks and overflows she does a little wee out the tube and NOT down the cylinder and washes out the oil and bearings, cams etc.
Can the same be done to the bird? Is there a compatible float bowl with integrated overflow out there? Could they be brased in up to the appropriate float height plus say 3mm?
As I think about it we also have the petcock issue and its vacuum hookup which is again a potential fuel pathway to the cylinder. Any smart fella have a redundancy solution here?
Ideas welcome as although mine doesn't leak into the oil the mere thought of this makes me sick.