Hey guys, my speedometer quit working on my 2005 Tracker 175 / with 50 horse mercury. I'm confused about being told that there is a small hole on the motor that might be plugged but have also been told that it is something that should be on the transom near my transducer. I can't find a little hole on the engine so I thought one of you would know.

Thanks, Kevin

Pickup tube on back of transom looks like this, Check the hose to be sure it is not disconnected or damaged. another problem with these is the lower pickup is lower than transom and can get broken by brush etc, when fishing in trees in the water.

Or it can get knocked up and not be in the water properly.

The Tracker repair guys told me that if a small bubble developes at the tip of the tube you will also get no reading.

My 185 reads my speed and other times it does not. Whe this happens and I decide to check the tube I just put my hand down the back of the transom and make sure the tube is in the correct position.

I have installed a Lowrance GPS and WAAS unit so I read my speed off my Lowrance unit.

Look for the small black tube approx 1/4" in diameter, it will either be going over transome to the motor or down the back of the transome to the pitot. I would think on that motor they pick it up on the leading edge of the lower unit. If so, you will see the tube coming out of the mid section about half way up and just below the anitcav plate, the location is hard to decribe but usually it's a small plastic elbow fitting pushed/screwed in there. The hole is only going to be less than 1/8" diameter and on the very leading edgeof the LU a little way up from the bullet shape. A lot of the time, the tube pulls loose from the plastic coupling they use to connect the piece going into the motor to the piece going to the boat or the nipple gets broken off the motor.

It could just be the speedo went bad. find the end at the transome and put about 80# of air pressure on it and see if you get a reading. Also, blow back through the other way, toward the pickup to blow it clear.

As long as the tac works, I never get concerned about the speedometer, I use the gps when I want to know how fast I'm going. It'll be accurate the speedo can be way off.

Pickup tube on back of transom looks like this, Check the hose to be sure it is not disconnected or damaged. another problem with these is the lower pickup is lower than transom and can get broken by brush etc, when fishing in trees in the water.

Thanks Joe. I'll check this out.

Or it can get knocked up and not be in the water properly.

The Tracker repair guys told me that if a small bubble developes at the tip of the tube you will also get no reading.

My 185 reads my speed and other times it does not. Whe this happens and I decide to check the tube I just put my hand down the back of the transom and make sure the tube is in the correct position.

I have installed a Lowrance GPS and WAAS unit so I read my speed off my Lowrance unit.

Thanks Sam

Look for the small black tube approx 1/4" in diameter, it will either be going over transome to the motor or down the back of the transome to the pitot. I would think on that motor they pick it up on the leading edge of the lower unit. If so, you will see the tube coming out of the mid section about half way up and just below the anitcav plate, the location is hard to decribe but usually it's a small plastic elbow fitting pushed/screwed in there. The hole is only going to be less than 1/8" diameter and on the very leading edgeof the LU a little way up from the bullet shape. A lot of the time, the tube pulls loose from the plastic coupling they use to connect the piece going into the motor to the piece going to the boat or the nipple gets broken off the motor.

It could just be the speedo went bad. find the end at the transome and put about 80# of air pressure on it and see if you get a reading. Also, blow back through the other way, toward the pickup to blow it clear.

As long as the tac works, I never get concerned about the speedometer, I use the gps when I want to know how fast I'm going. It'll be accurate the speedo can be way off.

Thanks BKeith.

That's what I like about this site. Someone always there to help with an issue. Thanks alot guys, I'm sure I'll be able to get this working now.

Kevin