Looking at a used chipper with a 8 H.P tecumseh engine. Its has a sticker on the engine, extra life industrial/commercial anyone have the scoop on these. The chipper looks to be 3 to 4 years old, owner says it hasn't run it two years, and won't start he claims it just need a carb cleaning. Its extremely clean looks to be hardly used ? He will take $175 for it. Anything i should look out for.