I didnt realize that magnum had a new 91 2 stroke. My mistake.
I sure hope the new one is better because the old one sure was a useless hunk of metal.

I have had 2 OS91fx engines that run perfectly and a friend has three of them in planes and they all run perfectly also. I guess there must have been some bad ones out there because there sure is a lot of people that complain about them. But we sure have had good luck with the os91fx engines.

It sounds like maybe magnum is producing a lot better engine now. It sure would be nice to pay a lot less for an engine with the quality of an os.

I have had very good luck with OS engines and not any luck with the MAgnum engines this is why I stand so firmly with the OS products. I have never seen a bad OS engine but I guess I havent seen them all. Just my 2 cents.