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Originally Posted by tkwetzel
I know that B&S and Tecumseh engines rev to 3000-3500 rpm stock, but can push out close to 7000 rpm with some modifications. And the 6 HP Tecumseh engine we used on the chopper was like 150 cc...not as small as you would think. I have no idea about the legality in Michigan.
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what are those modifications you mention? is it something to be done in a garage? or do i have to take it somewhere and have it professionally done?
so seems everyones against the 50cc engines. how about pricing? is a lawnmower engine worth the money over the small engine?