Hmm, I don't know how large your Enya is, but there seems to be a fair amount of room to mount the engine. My Saito .91 fit fine even with the stock mount. Only mod I had to do was use a countersunk machine screw on one of the mount-to-firewall holes, as the carb would hit the hex screw that was included. I'm not sure of the case size of the Saito .65 but I'm fairly sure it's a step down from the .91.