I have a 6 hp Mercury Mark 6A that I am trying to get running. I got this motor for free and had it running for about 5 minutes. I can't get it running now and I think I need to clean the Carburetor, it doesn't seem to be getting enough gas. Is there any tricks to getting the carb out on this model other then pulling the entire engine? Trying to avoid buying a service manual till i know that the engine will be worth fixing.