So I got that old Montgomery Ward Rotitller running perfect, took it out the other day when the ground was good and mushy by the garden and it ran great still had its power and no more fire. Now its onto the other generator. It's a coleman 54 series. It wouldn't even run without being spoon fed gas or starting fluid. I took the carburetor apart and then accepted that since my grandfather had 4 riding mowers, 3 push mowers, 2 rototillers, 2 snow blowers, 6 weed eaters and 8 chain saws, it's time to learn. All of these currently now run except this [well it runs but not right], 1 snow blower, and 2 weed eaters. My goal is to get everything fixed and fire everything up once or twice every winter so I don't have them break down on me. My fiance and I have a lot on our hands with being new home owners and a lot of this stuff is going to see real use. Anyways.. I watched a bunch of videos on carbs and went outside prepared for this and it was an updraft carb and so I went inside and watched more videos. My needle and seat for the fuel bowl were stuck and the main jet and the hole in the fuel bowl for the main jet were clogged. I got carb cleaner and scraped everything out until fuel flowed everywhere it was supposed to. The gaskets did not come apart great, I tried to use create a gasket to fill in the troubled areas. I got it put back together and it runs to my total surprise.. but not right. It's running in fire mode just like the tiller was. It has two adjustable screws for the main jet and the air screw. I can dial them both in and out and it reacts to them and clears up some but after 30 seconds no matter how close I think I am it will surge in and out a little and start to breathe fire. I did notice that my form a gasket is not really working. It kinda oozed out and I even saw a few bubbles on that crease in the middle. Would this be allowing it too much air, or ruining the vacuum going up and be too much fuel? I don't understand why I'd see bubbles on the outside of that gasket like there is pressure on the inlet like the gasket was being pushed outwards. Either way, I found this carburetor on ebay for 15$ so I'm going to try and either just use the replacement or steal the gaskets. https://www.ebay.com/itm/Replacemen...233333&hash=item41de2e66be:g:gQcAAOSw66Fak5EW It looks almost identical.. would you just swap it in if you were me or use the gaskets and try to dial in the carb I have? Suggestions welcome, I have a lot of learning to do with these. My grandfather has a box with over 100 small engine carburetors and parts for them, but I haven't found a supply of gaskets anywhere yet. I think he cut his own but I havent found rolls of material or I would have just tried that.