Can a capicitor start AC motor be used as a generator?

I'm trying to build a homemade wind generator and I'm having all kinds of trouble...I know DC motors are the easiest to work with but AC motors are the easiest to come by, at least they have been for me thus far. I have tried multiple motors some with capacitor start and a couple without. All I get out of any of them is NOTHING! LOL It's so irritating. I have a full wave diode to convert the AC to DC and I have tried all the motors both with and without the diode and that max I can get out of them is something like .02 VDC or AC it doesn't matter what I do I still get the same results. I know the meter is fine cause I have used it on little hobby motors and it read their voltage just fine. The motors do work I've plugged them in before and they run fine. Any ideas on what I'm doing wrong and thing I should try would be greatly appreciated. I'm not sure if the motor with capacitor start is a usable type for what I'm trying to do. Just came across a website a while bck that said yes Thnx