I got ahold of Marine Carburetor today they shipped me a rebuilt with the small base apparently they have both. very courteous and great to deal with we'll se hoew it runs in a couple of days.
the ones on amazon are 3 3/4X2 mine is like your 3 1/4 x 2 and I out checked the one I purchased from Marine carburetor and realized it is the wrong one its the same as amazon *!#& oh well back to the search!
It looks like this is the problem. I have purchased the i5Carb refurb I m hoping they are quality we"ll know soon. if not I'm going to go the route of adapter plate but I'm sure there are a lot of adjustments once you walk. away from OEM specs.
Thanks for the input guys. The Sierra Carburator that you listed above is the one with the wrong bolt pattern. Anyways, you are correct there are not a lot of options out there. So once again, we break out the pocketbook.
I tore it apart there was corrosion on needle valves and power valve. kits dont have needle valves carb is 1351-5203A1 linkages and casting sleeves are worn and I can't get repeatability on idle. just wondering if there a sub for a $365+ rebuilt that will be a little less money and give me...