Bayliners have a reputation for not being able to take a pounding.

Bayliner 175 speedometer not working. Speedometer stopped working Thier should be a water pick up on the outer transom and a plastic tube that connects and goes threw the transom to the inside of the boat and the other end should connect to the back of your speedo. If my tach works then its a bad tach. What I do is piggy back my tach on to the existing tach and see if my tach works or not.

Locate the tiny hole on the leading edge of your lower unit. Boat owners take issue with the fiberglass layup. I have a 2015 Nitro Z7 with a 175 Mercury Pro XS that I loaned to my cousin for a few weeks.

When the compressed air blows freely through the tube reconnect the tube to the back of the speedometer and blow through the tube again while your assistant watches the speedometer. Thats where the water enters to get your pressure reading. If the valve is stuck or clogged change or replace it while the engine is shut down.

175 Owners Manual Supplement Chapter 3. Just bought a 2013 Bayliner 175 BR and the previous owner advise that the speedometer line was damaged by a turtle that chewed it and it would cost me about 4000 to get the line fixed. If it doesnt move the hose is plugged other wise defective or the gauge has an issue not very common.

Current and you power up until the boat speedometer indicates 25 kts the GPS will indicate a 20 kt ground water speed. I know a speedometer is not a big issue but I am one of those guys if its on there I want it to work no matter what. Then check the drive unit.

Reconnect the boat battery to the boat wiring system. Speedometer Not Working on a 175-gctid765614. I have not really looked into this too deep yet myself.