Well, it may void the warrenty:

I never start any new engine before I completely disassemble it and check it out. I take the carb completely apart too. Everything. Crank comes out, bearings come out of the case and get flushed with a solvent--then lubed with after run oil just prior to re-assembly. Case gets inspected and occasionally I'll run a pice of sandpaper or a file inside to remove a piece of slag. Piston, rod, and liner come out and get inspected. Carb gets stripped--yes- even the fuel nipple and the needles.

I can usually find 1 thing or sometimes 2 things wrong inside an engine. It only takes about an hour to take it apart--inspect--clean--and re-assemble. Worth the time IMO.

I realize that some guys don't have the know-how to disassemble an engine and reassemble it. But--you can always find a guy at the club who will help. These little glow engines aren't that complicated. But, they are a precision piece of equipment--with very close tolerances inside--and a tiny bit of metal in the wrong place can wreck one in a hurry.