Jim, I try to use a starter whenever possible. I have a Megatron, a Dynatron and a cheapo Tower HD starter. "Minimize" contact is the proper term, I suppose.

Dick, I am not criticizing the ZDZ any more than Clarence was. I am simply as surprised as he was that his findings were contrary to the manufacturer (or should I say importer's) claims. Clarence did state very matter-of-factly that the port timings and CR are consistent with an engine designed more for a tuned pipe application. However, the engine is NOT marketed (at least here in NA) as such. The engine is most commonly sold, and is most definitely advertised along, with a Pitts style muffler.

ZDZs are good engines, no doubt. However, high octane and low weight are the two primary selling points touted. I am only saying that the marketing of it would lead one to believe a wholy different picture than what Clarence revealed.