ORIGINAL: craigteffe

There is no need to run the engine on the ground for that length of time!!! All you need to do is run one tank thru the engine with the stock setting at different throttle settings for 5 min intervals and shut it down then let it cool and do it again till the first tank is run out. Then fill the tank back up and and adjust the needles for good performance and fly the darn thing Use the KISS method (keep it simple stupid). After running thru 4 gallons of fuel switch over to amsoil or another good quality synthetic.

I have two of these engines and they run great and that is the way that mine are run in.