@mid66062 you did not tell us idf this "Found the fuel pipe to the carburetor was loose so I plugged it back" made any difference. I wonder if this is not from working on your enine. Sometimes you will have oil that enters the combustion chamber etc. when the engine gets tilted etc. If it runs, let it run for a while and see if it cleas up. Of course, make sure that you have enough oil in the engine etc.
It is possible you could have internal issues with the engine, like bad piston rings etc. Try a compression test, check your valve train etc. Start off with the basic manual [document|38754] and after that go ahead and use the [document|38755]to work on the "internals" of your engine