I own several Enya engine and like them very much. I recently bought 90 4 stroke after several tank of gas the engine has not broken i n yet. One of the issues that you should be aware of is that the parts can now only purchased directly from Aztec marketing with 7.00 dollars shipping cost, that means even if you needed a .50 cents screw you needed to pay $7.00 shipping and your hobby shop can not order it for you. I would consider a Saito , OS or YS unless you are getting a great deal on a Enya.