ORIGINAL: pimmnz
And if this engine has never run, then 20% castor only fuel, 11x6 prop, slobbering rich, ie won't run unless the throttle is full open and plug lit. Then slowly leaning until it will sustain ignition by itself, lots of short runs. 12x6 and 12x7 props are likely to be too big, 11x7 or 11x8 will be the flying props. do not run lean, you can't get new liners and rings, and it will only take one hot run...
Evan, WB #12.
Good point about the caster Evan! I hadn't thought about that, but an engine of this vintage should probably be run on caster.
Thanks for the info! [sm=thumbs_up.gif]
RG