Scott Claboe
Yes.. I went to 10% on mine because it was running so hot that it pre-ignited the fuel at idle and caused it to stop. It would run, but then all of a sudden just quit... No sign of too rich or too lean just plain out quit... One other problem I noticed was I had a faulty front barring leaking air.. I called tower and they replaced it for me... Try 10% and the plug you have or maybe the A3... you may also have luck with the Enya plugs... #4 I think.