ORIGINAL: smkrcflyer
I'm putting an OS120 on my 1/4 scale Sig Cub and it looks like the cylinder is near the top of the cowl. Does this look correct? Should I mount it inverted? Will I need an Onboard Glow Plug Starters if its inverted?
You can mount it in any orientation that you like so long as the crank center line is in the right place. I have inverted 4-strokes that run just fine. You don't reall need an on-board glow system but an inexpensive remote glow plug setup is nice and avoid having to fiddle around trying to connect the glow driver underneath the plane.