I had the Evolution .46 NX and the earlier.46 NT. The last Evolution I bought was the .61NX. To keep it short and sweet, I battled with these engines constantly and I lost. So, I got rid of them and pulled the pistons out and made key chains out of them.

Matter in fact, my Evolution Engines work better as expensive key chains then reliable engines. But again that's just my negitive opinion and not fact. I haven't made any key chains out of my O.S. Engines. I guess it's because they are still doing what they were ment to do.


Pete