Got back on the 1811 today for a little while. Last time we had it running, well it sucked.

pulled the carb again, everything still looked OK. Talked up the problem on and off forum, suspected coil. I checked and one wire had more output than the other--huge difference actually. Ordered a el-cheapo coil. Pulled the engine today, washed it while it was out--dirt buildup wasn't too bad, a few nut hulls from mice. Pic is before its bath.
I do have a question, the parts book shows the engine is supposed to have 4 spacers between it and the mounting plate. It only had 2 (at the front) so we made 2 more for the back. It looks level anyway, are we correct that it should have 4?
Didn't have time to hook up anything other than getting it bolted back in. Maybe 1/2 hr's work to fire it up then I'll know if coil solved anything. Spark output is now equal on both wires--and strong.