I'm going to retry coolpower again tomorrow. I bought some extra #8 plugs and will try the fuel switch first, than plugs and retune the needles at the same time. I don't understand why my OS50sxh won't run on Omega. Its gotta be the castor oil vs the synthetic. Maybe Saints right, its too thick. I don't do 3D so 30% would be a waste of fuel and money for me especially since this motor ran strong 2 weeks ago on the coolpower.I don't do 3D....no wait. Oh thats right, I can't do 3D!