mingo
ArboristSite Operative
All the 7900's I've ran eat gas faster than the 372's by quite a bit. I'm thinking you're 7900's were tuned too lean, the rev limiting coil can fool people that have plenty of experience tuning saw carbs. Most of the issues people have with saws, even cheap Poulan wild things, is operator error. Or you're just full of it.
That's why I always let the dealer set the carb on the 7900.