Ran this saw with a 36" bar for 5 hours over several days worth of work and it died. Took it to dealer who said it was blown up. Took 6 weeks and numerous calls to echo, echo support, and dealer. Went to pick it up and wouldn't run in dealers parking lot. I plan to sell this junk on craigslist for much less than I paid for it. I'll never own another echo. The saw trashed because of a poorly designed air filter system that seemingly allows dirt to enter the carburetor. The dealer put on a new filter but it still isn't right. That's for sure. It's soon to be replaced with a Stihl.