Just got this motor with 140 hours on it.I have a Clymer manual for it but it doesn't have any hose diagrams in it. There's a fuel module between the two banks of carbs with a small hose coming from the block to the top of the module.There's is a t-fitting in this hose with one end going to a fitting that sticks straight up out of the top of the module and the other end is just dangling there.When the engine is running there's air pulsing out of the dangling end.Question is does this hose end just fit into the top of the air silencer? Does it attach to the carb or where?And what is that small red lever with an air fitting on the module?Thanks for any help on this.<br /><br /> Hank