I bought a 16 HP Briggs V Twin off craigslist for $25 a few weeks back. I figured that the motor was broken but the guy said it had good compression so I figured what the heck. I started toying with the engine today and I was able to pull a starter off my old 10hp briggs that I put on this briggs, and I ran a compression check, and I read pretty much right at 150 PSI in both cylinders so i ran a gas line off one of my mower tanks down to the engine and sure enough it fired right up ran pretty smooth to. I just wanted to make sure that before I go any farther that there is something not drastically wrong with the engine. I have an old shop manual but and it says as long as it above 100 PSI im fine. Oh and When the engine ran there was no smoke at all.