RE: ASP/MAGNUM FS400AR Rebuild/Overhaul
No need to take the entire thing apart just to pre oil....Just shoot some after run or other high quality oil through the crank case nipple and put the engine face down for a few days. Turn it over by hand occasionally and change its orientation to the ground over those days. The oil will find its way all the way to all the parts easily, in fact you will see it slightly seeping out in many areas. I store it the same way although I add a plug once flushed with kerosene and re-oiled. Mine is over 5 years old now and makes gobs of good noises and its easy to start. Engine runs cool and strong on a master airscrew 20X8 (break in prop) and is very miserly on fuel. As I have posted here previously 13.5 minutes at WOT on 16 oz fuel tank using 10% Omega fuel (castor based).