I've got a strange one that i cannot figure out. on the intake manifold, port side there are three bosses that are threaded. These are in the casting and the middle boss is used as the anchor for the throttle arm pivot. The upper and lower bosses, while threaded do not have any fittings...
Pretty much says it all. was working and running great and had a hose work loose. Didn't run it that way so i'm thinking im ok. replaced all the tubing with new and fill tank. Premixed fuel in the tank to 50:1 just to be safe.
When running, it drew the oil from the tank to the oil pump...
