Okay I narrowed it down to fuel problem. I put gas into the cylinders by taking out the plugs, it fires right up.I put a new fuel filter on an all new hoses from the motor hook up down to the tank. I checked the bowl on all 3 carbs and they were full. Not sure where to go from here and what to look for. The mechanic said he adjusted the carbs. Not sure what he did, I think we got the shaft from him.