I know about live and learn also. I found Tachs on Ebay last night and already bid on one. I also found the red grease pencil marks on the engines. I have not found anything seriously wrong with an engine. A bad carb would not be likely, but wouldn't matter. I thought it over about the Toro/Walbro rotary carbs, they are OK, BUT, we are after maximum power so we are no doubt better off with a 2 needle carb, Walbro or Zama, so we can be sure of how we are running the engines.

The Rotary carbs looked like a very low mounting would be possible, that was interesting, but not the only consideration. I ran one of the engines without a muffler, they are not that loud to begin with, compared to a chainsaw, so I am going to work on a slimmer mufffler.