Re: where is the air fuel mixture screw located on the carb?

It's a 1979 vinatge (metaL tank) got it for ten bucks and fixed it all up about $200 in parts.  Used it for a season.  we get abou 300" of snow.  It did the job but it runs rich as heck.  The plug is caked with carbon.

I looked at the parts break down and checked the descriptions.  It appears as thogh it is the small screw with spring on the upper left of the carb as you look at it form the side of the machine.  I adjusted it a bit and it seems to be the air fule screw.  Under the rich condition it was running at about 1.5 turns out.. I went to 2.25 turns to lean it up a bit.  We'll have to wait and see how she works when it's cold.

This thing was running so rich that it would strat in the winter without the choke and if you choked it it woul blow black smoke and stall.