[atomikpup187]

Do you know what models/years this was used on? It looks like that may have been on my transom at one point. All that's left is a cut wire, a bracket and a speedometer that doesn't function. I haven't pulled the speedometer yet to see what type it is as the boat is in storage.

[ColoradoDiablo]

Does your boat have a factory depth sounder installed in the dash?
Your speedo runs from a port on the front of the outdrive. It's probably just clogged.

[atomikpup187]

Factory depth sounder yes. Alright good deal thank you very much, i'll do some troubleshooting on that then. Thank you very much.

[ColoradoDiablo]

Try just unhooking tube from speedo and blowing out with light air pressure. The pickup hole is located at the front trailing edge of the lower unit.
Some times a small piece of sludge sand or what have you gets in the hole.

Larry

[Paul F]

Or in my case, a broken drill bit..........