Just lost the speedo on my Bravo 3 yesterday. After following the steps you videoed. I have a working speedo again. Thanks very much!

Stumbled across this video and found it to be exactly what I was looking for to remedy my exact situation. Straight forward and informative. Well put together with no unnecessary info added. Thank you for a fantastic job. Well done sir.

Great video. To unclogged my speedometer channel we always use “aircraft safety wire no#20” works perfect for snaking all jet channels. Simply unplug the tube as you did and insert the wire down the channel freeing the clog out the other end.

Thank you. My dad hasn't been able to use his speedometer the last 3 trips down the river and I just found your video today while we were down here. Fixed it in literally 1 minute with a carb and choke cleaner straw.

My clog was right at the entrance. I used your drill bit idea and used a smaller size, twisted it to extract by hand and was able to slower get the gunk out. I then switched to a larger size to make sure it was clear. thanks for the video. it gave me the knowledge to fix my problem.

This is awesome, I ran my boat aground a few weeks ago on a sandbar and the speedo hasn't worked since then, I'm pretty certain this will fix it. Thank you for the video demonstration

This was very helpful, thank you!. Just wanted to add that the boat I purchased had not had a working speedo for multiple years and this tube was PACKED with sand, clay, wood and seaweed... packed so hard that I had to use a drill to even begin cutting into it. I did these steps, on and off, for a couple of hours but nothing was changing. I had utilized the full length of my drill bit, I tried coming in from the top with weed eater line (as suggested by a commenter) but I was still not making progress. I had a 10" piece of 14ga. solid electrical wire and I took the copper ground wire, put it in my drill, and slowly worked it back and forth. The copper is flexible and will bend if you push to hard or run the drill at too high of a speed AND YOU NEED TO TAKE CAUTION NOT TO BREAK IT OFF INSIDE THE LEG, but this got the obstruction cleared in about 90 seconds. It still took some flushing with the water solution and running the wire in and out to keep breaking the larger chunks, but I was finally able to put the air hose on the lower hole and blow out the last of the larger chunks. Can't wait to get it on the water and see speedo movement on a gauge that was not operational for at least 4 years. Thanks again... 5 years later and your video is still helping others! :-)

Great thread! I used the same strategy and unfortunately my blockage was more stubborn. I ended up with some additional suggestions: 1. use a heat gun or hair dryer to heat the 3/16th's tube - my plastic connector seemed brittle and i was very careful not to put undue pressure on it to attach the tubing; 2. if the water solution doesn't work I then used my air compressor and could have used a 3rd hand. What I ended up doing was to hold the tube connected to the boat with one hand and the A/c fitting with the other - so it would not blow off when I sent 150 PSI into the tube. Then i used my knee to get air flowing- worked like a charm!!! Cant wait to get back on the water and be able to confirm my speed. Speed for my kids doing surfing and wake board ends up being important - one kid goes faster and the other not so fast. Great to get this fix without traveling to shop to wait and pay $$$.... THANKS!!

Thanks Doug, that was great help. I actually overlooked this very small outlet on the back of my lower unit at least half dozen times, took it up the river and got lots of nicks and chips on the back of my lower unit so with all those it was hard to pinpoint the exact spot of the hole. Finally found it, cleaned it out with a drill bit by hand, used the tubing and syringe you suggested, had to disconnect the existing tubing from the outdrive and given the type of attachment point had to remove the connection tip and reattach to my tubing. Of course I got the same result, lots of built up pressure, kept adding hot water, and it started leaking out of the attachment point and not to pitot hole, used a drill bit by hand but was only going in 1/4 inch, from other videos I knew it was still blocked so I attached it to my drill and added some power behind it, finally broke through and it was definitely packed with dried mud, then the entire drill bit was able to be inserted and removed. Have not had it in the water yet, but now that its cleared out if I run the motor on muffs should the spedo work now either on throttle or in gear? My understanding is it has to be in the water actually to be able to measure pressure and speed?

This is excellent. I was not able to force the soapy water through so I took the line off my weed eater and fed it down from the top. It took some work but was able to break the blockage. I was able to clear it out and flush it with soapy water and air. Thank you for posting this.

Was having this issue with my new to me boat , I have electronics that show me gps speed The past 25 years with my other boat never had one problem so I had no idea This was so helpful , it was full of sand Great video and thanks for being so helpful

Very good info on using the syringes and soap!! Thank you!

Thanks Sir for taking the time to make this video. Mine was heavily clogged with wood. I had to use my drill since trying by hand for 45 mins wasn't working. The syringe and soap trick helped also. Thanks!

Thank you Doug for making this video. I was prepared to take the boat to the marina and have them fix it, but after seeing this I did it myself and it works perfectly now and easily saved some serious money. Mine is a Bravo One but it seems the parts and everything is identical to yours.

I found mine is plugged with a piece of wood. But the line is clear. I like your idea of back wash through the LU. Great Video!

Thank you for a very clear description of what I need to do.

great video couldnt find anything on that tube to explain it thanks

Great info. Thank you for taking the time to share.

Thank you, just today my spedo stoped , and I found your info helpfull.

Thanks for the video! I haven't attempted this yet, but I've learned something new.

Thanks for the video. I am going to give this a shot.

water never gets to the gauge water just compresses air toward the gauge as you go faster. than spits back out when you slow down

Thanks again. This worked for me. Didnt use dawn dish soap. And instead I used fresh water and used syringe for compressed air.

Very helpful, great demonstration 👍

Your are a pretty smart man i was thinking about doing the same check and fixing the speed gauge i will doing mine just you said Thanks man im in Savannah Ga

Worked perfectly thanks.

Thank you!!

Life saver. Thank you 🙏🏻

Genius, thank you!

I have been wondering why my speedometer does not work on my bravo 3 I O board I I'll try to do what you did also. Thanks for info.

Once the tub goes into the transom how do you get to it, the tub is leaking somewhere.

Thank you very much.for your video. It helped me

Good video very good info

Thanks very much!

Mantaaap sungai cun… nnti kita pi camping

What about the method of pulling the tube from the back of the gauge and shooting air through there? Think that would work?

thanks I just discovered my speedo does not work great little test before I go spend money on a part I might not need - thanks

Great video thanks for making it!

Thanks!

Can you clarify where you put the clear tube on the top before you used the plunger? I cant seem to find where that goes on mine.

Awesome! Great video!

Thank you

Great video

FANTASTIC !!! I HAVE THE SAME PROBLEM IN A VOLVO SX STERN ... (1999 GLASTRON SX 175 VOLVO 3.0 GL), MAYBE THE PROCEDURE IS SUCH AS YOU SHOW US IN THIS VERY CLEAR VIDEO.. WHO KNOWS ? DO YOU THINK THAT IS THE SAME SYSTEM? THANK YOU IN ADVANCE FROM ARGENTINA ! (THE INSTRUMENTS ARE "FARIA")

wow good job thank you

Does water go all the way to the speedometer and that creates the speedometer reading, or does the water compress the air already in the tube?

THANK YOU!

Did you put a new zip tie on after reassembly?

Doug, I have oil dripping out the hole for the speedo pito tube, any advice what it could be?

is this the same procedure for an outboard?

How far in was the drill bit going?

I just wish you had stuck camera in behind the lower unit for tube.

Where do I plug the hose into the speedo?

thank you so much

Hi Doug, I don't see the link you mentioned that shows the type of syringe you used.

I was cleaning my today and I broke a drill bit in the hole :( any tips how to remove it without taking the lower unit apart? Thanks.

Genius!!!

B

www.walgreens.com/store/c/walgreens-true-easy-oral-syringe/ID=prod6191613-product?ext=gooPLA_-_Health_Care&pla&kpid=sku6169097&sst=4bc11f77-085a-4bb4-a252-2390fe1d08e9&adtype=pla

Thank you