Re: ’62 5.5 Fisherman won’t idle

[amuller]

I finally got back to this and replaced the float, needle and seat, and bowl gasket. It’s running a lot better now and seems ready for a trial and adjustment on the back of a boat.

The compression is about 85 psi in both. Is this normal for this engine or should I be looking for an increase?

It also still acts as if the twist throttle is off a tooth, but the two bevel gears seem to come to the last tooth together.

J4Js are of course the standard plug for these. Is this still the best choice? It has J6Cs in it now.

I also notice it seems to load up sometimes and send a cloud of smoke across my backyard. So I’m still wondering about the possibility of the crankcase drain system being plugged. Being that there is no separate cover for the drain reeds on this motor, is there an effective way to confirm that this system is or is not working?

Thanks!