I have a question I have a Magnum 120 fs and it won't run. It is mounted inverted. The only time it runs is if I pour a little bit of fuel in the carb and then it will run till it burns that fuel. For the life of me I can't get it to stay running. I don't know if I am missing something obvious but I can't get the engine to pull fuel into the engine. I am using an electric starter with no luck. I have tried everything I can think of. Thanks for any help