Speedo Problem

[SeaHunt]

Anyone know how they work these days.
Mine has decided to have a rest. #???
In the good old days there was a plastic arm thingy that stuck down into the water off the transom and used to pivot up with water pressure and give an approximate reading.

Now I think the speedo runs from the motor somehow, is a 4st 60 hp Merc, 2003 model, and the speedo was surprisingly accurate , when compared to the GPS. #

[Aaron_Fogarty]

Mate
There is a tiny pitot hole on the front edge of the skeg on the outboard. They often fowl up. Above this there is a small plastic tube (12" above) usually painted, so you probably haven t noticed it. Disconnect it at this point and blow some comressed air down the short length towards the pitot pick up. This usually will clear the line.
Aaron

[SeaHunt]

Thanks Aaron, that will be it for sure, I neglect to mention in the original post that I slid it over a submerged log in Hussey Creek, (Pumistone passage) just before I noticed it wasn't working.
Motor was out of gear and I was only going about walking speed, didn't think I did any damage , but probably picked up a bit of rotten wood in the hole.