And yes, I do agree with second motor ( back up motors )
All of our karts at the shop have 2 motors for each kart
I currently have 2 newly rebuilt engines, sitting in my office, and that’s how I started testing all my engines, when I suspected I had no power,
And there you go, my engine had low compression, so I started comparing everything we’ve been getting built.
Thank you for all your help and advice, You’re awesome!