YA I do. The guy I got my 74 GT 380 from told me all about it. and ye it "WAS" a lot of maitenance to keep the 2-Stroke oil pump in good condition and not run out of oil or have the pump blow...TAKE IT OFF!!! I sudgest you take all that crap off and just run mixed gas through w/ a 32/1 formula. Any 2-Stroke oil will do.
All other maitenance is in the chain, and reguler fluid changes.