[bigshrimpin]

I'm no expert . . . but it looks like a three wire setup to me. All the two wire units I've seen have wires coming out of the motor like a cord to a lamp in your living room.

Spares is the pro here . . . I've got both 2 and 3wire setups in my garage right now. I was able to tilt a two wire style up and down (for ebay pics) just buy connect them to a battery pack. There may be different types of two wire setups . . . but that worked for me.

Up = (positive to positve, negative to negative)

and then reversing polarity to tilt down

Down = (negative to positive, positive to negative).
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Forget what I said in the PM. I just look at my 3 wire deal in that garage and I'm 99.9% sure you have to pull the motor off the boat to get that trim motor off. Like airslot said you need clearance to get the motor out . . . removing the right side bracket sounds like an option, but I'm not sure it's any easier than pulling the motor.
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Hopefully it's just a low battery, loose ground or bad relays.