Don't blame ABC's because you got a bad engine from Tower. There are many threads complaining about Tower engines and there are some that have had no problems too. You don't say all cars are bad just because you bought a bad Yugo. (Yogo owners please don't take offense, I had to pick a name somewhere). Most ABC's are fine engines. I have several by OS. One might expect to get a better engine if you pay a little more money. Yugo vs. Cadillac... I also have an OS 50 SX and it is a fine engine, you will be happy with it. You may have noticed the higher price tag when you bought it. I'm sure Tower thinks they are selling a good engine, not owning one myself I can not speak of their quality personally. I wish you good flying in the future and watch your investments.[]

You may have run it too lean too.

Bruce[;