My RZT50 (Kawasaki FRV691V) has been running fine for the past 3 years. It has worked great all summer until now. I took her out this past weekend, she ran fine for about 20 minutes of cutting. I started to notice her struggle a bit, and she also sounded different below (not the engine though). She gradually lost power and eventually stall out. She would start right up again but could hardly go 10 feet before stalling again. This continued with and without PTO engaged. But will stay running enough to get me back to garage with choke on. Once running it idles nicely, slow and fast idle, even with the pto on just not moving. It’s when I drive is when the problems start, thinking with the pto on. I haven't just driven around without it on. She just sounds like she's struggling, then she dies. The battery light also comes on when pto is engaged. But goes off when I disengage (keep in mind this is before I stall it starts to struggle after I drive around, and once it starts to struggle the light stays on. It either stalls out, or I keep choke on to get it back to garage.) But then once started back up light is off. Battery is good and has been checked. I've been told this sounds like a governor problem but I don't know how to diagnose that. I was more thinking it could be the voltage regulator or stator not keeping charge to battery as it has to much load on it when pto engaged.... (although in idle it keeps running with it engaged so maybe its not) any help be great.