Thank you so much! I could not figure out how to find an accurate search on YouTube about that tubing. After you told me it had to do with the speedometer I was able to find videos to help fix the problem. I would’ve been frustrated for hours if not days trying figure out how to search for the solution. You were a really big help and I really appreciate your reply to my post. Great forum and I will be coming back here often for any other boating issues.
Don't put too much Faith in GPS, as it is measuring Ground Speed, and doesn't take a Current into consideration. Boating on a River, in one direction the GPS may read 45mph, and in the other 25mph, when the Current is 10mph.
Does anyone know the diameter of that tube. I saw a YouTube about a guy clearing out the tube and intake port and I think he said it was 3/16 tube. Nobody sells a 3/16 tube. All I can find was 1/4.
look for Marine Pitot tube. its a kit that is like $10, with the transom pickup its about $20
That is correct, the time and distance over the surface, if your fighting against or flowing with a strong current your speed will change. It is still the time and distance your moving across a given area or surface. The pressure Speedo does the same thing when running with or against a current. Thus, when running speed checks, your told to take a reading in each direction and take the average. GPS is still the most accurate method of reading speed we have.
Pressure reading is far less accurate in any situation than a GPS ! Why do you think our military use GPS for everything !! Most accurate speed measurement in any scenerio !! Even submarines under water....
Over the surface of the earth as it is supposed to do. Airplanes and submarines make calculations for being above or below the surface.
Pilot speed is only critical to measure wind speed over the wings to keep them in the air. When calculating time and distance, arrival time etc it uses GPS. !!
The GPS reading is not distorted by current , it still measures SOG and water current will have no effect on its accuracy . You can of course take advantage of this current . By traveling with it you boat will cover ground faster than in still water and by traveling against the current the max ground speed will be lower even tho the water speed will remain the same in both instances .
Yeah I remember towing my Uncle on the ski's and he'd be hollerin at us to "keep it at 28" . The Willie Hunt spent his whole time upright ( so not long
) worrying about being towed at the correct speed . Yeah we had some fun with him , towed him over the wake and feigned engine trouble untill he was knee deep and then take off , ahh yeah , good times ......he went faster on a pair of skis than he ever knew and watchin him pullin his speedo's out of his butthole after a hi speed butt first landing was magic 
