Re: 1956 Oliver 5.5 hp won’t start

[frankr]

Don’t know if this applies or not, but after spending way too many hours on a Chris Craft cousin of this, I finally discovered that if the carburetor nuts are not tightened enough, it doesn’t moosh the reed plate o-ring enough to press the reed plate all the way in. And if not pressed all the way in, air/fuel mix passes back and forth between the upper and lower crankcase sections, and it runs poorly, or not at all. And along the same line of thought, you have the correct o-ring, right?