Hello Everyone,

I have a 2004 Novaross NS15S5 brand new or at least sitting in a box for the last 20 years.

I'm getting air in the fuel line. So far I have tore both the carb and engine apart and inspected every piece. No cracks in the block. O-rings, head gasket and all the rest of the parts looks good. New manifold seal and muffler seal. New fuel lines have been installed. I have dipped the fuel tank, fuel lines, engine, muffler/manifold, and carb in water. Only thing that has air following through is the crank shaft bearing. Which shouldn't be a problem.

When I the engine stops I have noticed air following in from the banjo bolt back in the fuel line.

There was a little bit of surface rust on the crank and inner bearing. Was able to clean it up with some isopropyl alcohol.