Well thanks for all the information on a reasonable price for a CB 350. I have not been dissuaded from selling and I was getting the machine ready to show off. I added fuel to the tank the carb overflows started draining even though the petcock was shut. A couple gentle wacks with a piece of wood got the needle valves to shut. Then I found fuel leaking out of the petcock. I tightened the screws and this slowed things down. Is it just that the rubber seal is dry or do I have to get a new one. I am letting everything soak in gas and I have a funnel placed under the petcock to divert the drips away from the engine. I must say that the bike started up immediately after three years dormant and was a delight to drive. Of course I had to replace the battery and unbind the front brakes before I could get out and about.
Do I need to get a new gasket or will it swell with hydrocarbons and seal???