I was cruising at about half throttle when my engine appeared to lock up. It stopped<br />HARD. Got it back up on the trailer and checked a few things out. Engine starts and<br />idles fine. Took the throttle quadrant apart, started engine - pull on throttle cable<br />engine revs great. idled down and moved electramatic switch inside quadrant, either<br />direction results in a slam stop. Reassembled quadrant - with ignition ON and engine<br />NOT running (plugs out), drive lever engaged in either direction, turning the prop by<br />hand results in the engine turning FORWARD no matter which direction I turn the prop.<br />It appears that both forward and reverse drives are being engaged at the same time.<br />I figured the switch inside the quadrant was shorted out. That checks out OK, but<br />connecting an ohmmeter across the blue and green wires going to the motor gives<br />a zero ohm (short circuit) reading. I don't know if that's normal or not. I assume the<br />opposite ends of both solenoids (or whatever is in there) are grounded so at most I'd<br />get a reading equal to both coils in series. Which might be close enough to zero to<br />explain what I'm seeing there. Anyhow, I think I have a short in the wiring harness<br />somewhere between the dashboard and the drive unit or else I have some kind of<br />mechanical failure that is causing this. Is there anything inside this drive that could<br />break and cause this malfunction or is this unavoidably electrical? How difficult is it to<br />tear into this drive unit and can anyone recommend a shop or repair manual that<br />covers this motor?
