RE: 90 size engine on a Pulse XT 60
Yeah.. the OS .75 AX. It will pull that 60 size plane around just fine. I have a Goldberg Skylark 70 and the OS .75 does wonders with that plane. AND, as per your request, it is just about the easiest engine I have to start. I fuel it up, prime it, hook up the glow driver, and whack the prop in the backwards direction (against the compression) and it starts up on either the first or second try. Then, once warm, well, it starts up on the first try each time, every time.
Fine engine.
CGr.