Join Date: Feb 2003
Location: Seattle, WA USA
I favor Marvel Mystery oil over WD 40, though I've never tried it for what you're doing. It sounds like the engine can be turned over by habd, right? If so, then you're on the right track, I would think. Good gas, good oil, good spark, a little extra slick in the cyls. Would you need to worry about glazing the cylinder walls as if it were a new startup? I wouldn't think so. When we start engines at work that have been dynoed then not run, sometimes for a year or two, we put in fresh fluids, crank for oil pressure and light em up.
(Big diesels) Make sure you crank it with the plugs out to evacuate the MMO from the cylinders so you don't break a piston rod.
Best of luck, let us know how it comes out. Pictures of the new rig?