Thank you very much I do see the screw here is the issue this engine was mint in box till I bought it a few months ago never run. It ran beautifully and I of course lubbed it prior. After being in the box for so long I can’t loosen that screw probably some corrosion or over tightened at the factory. I have tried wd40 putting a wet rag at the tip of my screw driver etc. that screw won’t budge. Any suggestions before I drill it out very carefully.

Thanks