okay i did what you say i put the petcock on prime i unscrewed the screw at the bottom of the float bowl and gas did come out, and the bike does run i used it last year and i was trying to get it going for this summer, also checked if the air cleaner was on correctly and yes it is, checked the vacuum hose and yes that is also correct it is like it not getting any gas in the cylinders. anymore thoughts?, and i would like to say thank you for your answer much appreciatedIt's not going to run if it's not getting gas.
With gas in the tank and the petcock on prime, you should get gas to the carburetors. Open a drain screw on a float bowl and gas should run out the drain hose.
You didn't say whether the bike was running, say, last week or has sitting in a barn for the last 20 years.
Are the fuel line and vacuum hose connected properly? Do you have the air cleaner installed correctly?