Problems with Formual Z

Hello,

First I want to thank anyone in advance that is able to help me as I am getting pretty frustrated with this snowmobile. I am working on a 1996 Formula Z for a freind of mine. I thought I would be able to get this thing running as it has sparl and apprears to be getting fuel, but I am not sure if it is enough.

WE rebuilt the top end, and prior to this my freind had the carbs rebuilt by a dealership. Compession check is good. (sorry i dont remember the exacts on this). When we pour some gas in the carbs it will run for a bit and then die.

I pulled the two lines off of the fuel pump and when I pulled it over a small amount of gas does come out of both lines. I pulled the carbs and there was gas in the bowls. When I pull the plugs there is gas on them, although at one point there was not. Looking through it this morning I see there is an air bubble in the fuel line, but i have read that that should not matter as the bowls are vented.

Please help any advice will help.

Ok, thank you. I took off fuel pump and cleaned it and am now getting fuel, may too much. When I pull the plugs out and pull it over gas literally shoots out of the plug holes.

Any idea what the external screws should be turned out? I have went from closed to fully open and the fuel still shoots out? Also I have good spark and fuel why is this dang thing not running?

Thanks again for the help.