I dont have a tiny, tach, but prolly should by one to tune with, like you said on the trailer. It did cut out on me like when the tank runs low once or twice, which conserns me, but then it fired right back up and is fine.. once I switched and ran it on the reserve pick up, it didn't cut out after that. I couldnt sit at the ramp and tune cause it was to busy. I had just enough time to kinda get my flow control valve dialed in, but that was about it. I lost one of my brand new snap on screw drivers in the water too! bummer.