I'm trying to start a 71 cb350. Hasn't run in at least 5 years. I drained the bowls and put fresh gas in it. I'm getting spark, because I pulled the plug wire and shocked myself. There are tubes coming off the bottom of the carbs and since I put gas in the tank I have fuel dripping from those tubes. Any help would be appreciated. It hasn't even puffed or coughed like it wants to start, but I know it really wants to.