ORIGINAL: captinjohn
I will bet it was not just a wrong oil problem. Clean things up a little and post some photos of it. We are all kinda like detectives!!! Capt,n
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I'm with Flypaper 2 and the Capin' (where's Tenielle?), I don't think it had time to affect the engine.
I ran an old 1968 Yamaha 350cc two-stroke twin on straight weight 30 weight oil for a year without having a problem. That's right, in the oil injection system. I was a poor college student and couldn't afford Yamalube. Of course, I was very easy on the throttle and had to clean the spark plugs a little more often than usual. Not that this proves anything with your B&S four-stroke engine. I just like telling the story.
What about warranty? Could you reassemble the engine and fake it? Shame on me...
I am kidding. Honest! <G>
Ed Cregger