My Troy-Bilt, model# 12AVB26M011, Briggs 6.75, won't even hiccup. Two years old and only been used about 4 times because of our drought. Always started with first pull and ran great. I always run tank dry at last mowing and put fresh gas in yesterday. Doesn't seem to be spark at wire plug. Is it safe to check with ohm meter (probably not). If there is no spark, what could problem be? It sure sounds dead. Thanks for any help!