People who gave this video a thumbs down must be on crack.........thanks Dangar for this awesome clip on diagnosis water not coming out of the motor.

Best video for a cooling system for a outboard motor. Very informational. Thank you

So I’m at anchor in Garrison Bay Washington State trying to figure out why I had no water coming out of my outboard tell-tale. I had visions of having to tear apart the cooling system. Fortunately I found your video and a paper clip saved the day! Thanks, Dave

I was buying a 1976 Era Merc and the seller was embarrassed when the telltale showed no water, explaining that the impeller was replaced. Lucky I had seen this video and we soon had the plug cleared. I bought the motor and now working on cables with the help of your videos. Thank you for being a thoughtful resource, and greetings from Lake Superior.

I'm happily going through all your videos. I like your clear, simple explanations and also how you don't add unnecessary opinions or guesses. Well done, keep them coming!

Yet again, saved by Dangar Marine - thank you!

THE KING OF Outboards! Thanks from Us who is learning how to take the step and manage to repair self. In sweden the boat season begins soon. 🇸🇪

Man you’re so good at explaining everything in a way that everyone can understand and follow the instructions and advice given made what I had to do so easy and I haven’t a clue when it comes to servicing/repairing a motor but you gave me the confidence to attempt everything with great success and understanding of what needed to be done and what needed to be given extra attention such as water and electrics etc... so thanks again Stu absolute legend!!!

Super helpful. All your videos are. I inherited my father's boat with a Suzuki DF50 that sat neglected for maybe 5 years with bad gas. After changing the fuel pump, Fuel Pressure Regulator, and cleaning the inside of the VST spotless, (changed pretty much the entire fuel system) and new impeller and oil I was excited to have a working engine but there was no water in the telltale. I thought I botched the impeller install, but I watched this video before disassembling the lower unit and had the confidence to pull the water hoses to diagnose where it was blocked. I saw water coming from the engine block, whew. I stuck my finger in the telltale and some water dribbled out, I stuck it in again and more water came out, a third time and it pissed like a racing horse. If I did not watch this video I would have pulled the lower unit and probably done a lot of damage. All your videos have been super helpful for me to learn. I take the boat out for the first time tomorrow.

I just want to say thank you Dangar Marine. Your no nonsense explanations of many important subjects has made me a better boat owner. Although I am from Boston, I feel a special kinship with you guys from Down Under. You are as cool as ball ice cubes and know how to fish and have a great time (and safely). Cheers mate! PS - I am jealous of the incredible (heavy) sportfish species that you have in abundance there and that I've never caught (yet). Like the big jacks!

Great video. He has an excellent way of explaining things clearly. I'm confident now i can sort my issue with my outboard out. Love the bonus bit at the end with the little lizard too 😂

I like watching all your vids, and learning more about outboard motors.

Very informative video, the problem was the tell-tale hose as was yours. Fixed in 5 minutes and avoided towing to a mechanic. Thanks a lot for the video neighbour (Arcadia Vale)

Thanks again for another good video. You helped me with my starter and since watching this video, I have been making sure to keep an eye on the tell-tale. I was running the motor to rinse the saltwater out and noticed it wasn't peeing. I took a small framing nail, and that did the trick. This new boat owner thanks you!

You have no idea how much your videos help this old guy. I am rebuilding a pontoon boat from scratch and I will be doing all kinds of things to check the Honda 40 hp 4 stroke outboard as soon as spring comes. This is my first boat.

I must say, this video saved me from dropping the lower end and 2ng guessing if I did everything right when I replaced the water pump!!! Your comment of "just because water isn't coming out does not mean water is not circulating through your motor....". Thank you and keep making well explained videos! The 1st I watched was when you built a simple trim tilt control box with 2 relays and housed it in a simple rubber-maid box! It helped me wire mine and use the relays!

Thanks for the tutorial. Very straightforward and detailed. Gonna track down my problem now ....with a good sequence.

Thank you !!! I have owned 4 boats and get around the 454s in my Carver Mariner pretty well (as they are like car engines) but my 2005 Merc 9.9 for the dinghy is actually the first outboard I have ever owned and I learned so much from this video that I just wanted to reach out and thank you. The hose was clogged to the outlet (thank goodness, was fearing the worst) but I now feel confidant to change the thermostat and even get in there to do the impeller if need be. Again thanks from Forked River,NJ.

Just the help I’ve been needing on my outboard. Know I can go fix it. Thanks for sharing your knowledge,

Years ago I had my lower leg off before realizing the intake was clogged. Felt really dumb but wiser now. Great vid as always, thanks.

You are hands down the best instructor for marine issues I’ve ever seen. I’ve watched all of your instructional videos even for issues I’ve never heard of. I thank you for sharing your knowledge stu.

This helped tremendously! Great video and insights, thanks for sharing.

The most impressive video of thorough Diagnostic for an outboard cooling system and potential cooling systems issues. You have have saved many others costly repairs by fixing it diy. 👍

I have not written any comments as of yet, but I've been watching your videos for years now. I have learned a great deal from watching you tackle your various jobs, my motor has bennifitted greatly from knowledge gleamed from your guidance; So thank you! Cheers from the United States ( Florida).

Thank you Stew for a comprehensive video about cooling. As always your my go to guy on youtube. Cheers Mate!!!

Very easy to listen and learn, top bloke, nice place where you live,,

I noticed this problem when I launch the quote today and freaked out because I thought my water pump was done with. did a search on KZfaq and found your video and fixed it within 15 minutes. I just want to say thank you very much I was able to still get out and fish today.

Thank you very much. Who would have thought the tell tale would be blocked. Thank you.

Thanks for the video. I enjoyed it and it was helpful in resolving a problem.

Thank you, Dangar. You save me $500. I have fixed two problems for 30 min.

Excellent job! Gave me lots of food for thought. I have replaced the impeller on a Yamaha 4 hp. This brings back lots of memories and is simply done, which is always the best.

I’m working on a 1987 Yamaha 60HP at the moment. Knew a bit about car engines but nothing about outboards. Bought this engine for £45 here in the UK. That’s pennies for an outboard, however, you get what you pay for! I’ve learnt everything for this channel Stu. Bought a used carb linkage and airbox as the engine was missing those. Checked compression, learnt that here. Been through the electrical system, learnt that here. Going to tackle a service/clean of the forward controls, yes, learnt here! Fitted a new fuel pump after seeing that mine was shot, another of your videos 👍🏻. Awaiting a new fuel line to arrive which will mean I can attempt to start the motor. If it starts and runs then I’ll replace the water pump and the gearbox oil and sell it! As I’ve not done the cleaning of the forward control I’ve not ran power through the motor’s loom yet so fingers crossed for a working tilt motor etc. Haowever, I’ve watched your video on that too. After watching your videos, I’ve broken each system down and learnt about them. I still don’t claim to know heaps about outboards, but I can now take tools to it and feel confident in what I’m doing. When I get stuck I seek advice to avoid costly mistakes. Many have said it before but thank you very much for the simplistic approach to passing on your vast knowledge to us all. Thanks mate. 👍🏻

I was looking at the parts on the flywheel and wondering... Couldn't say anything, of course. I'm here. Your there.

I will be in the market for an outboard set up soon, but have never owned one. Your videos have already put my anxiety at ease. Great videos, they are very informative. By the way, that water lizard looks a lot like a reptile called a chinese water dragon.

Thank You! Thank You! I ordered an impeller kit to replace on my 60hp Mercury outboard. I watched your video and went and checked my lines and sure enough, they were stopped up with sand! I blew them out and it is now pumping water like it should! Great video.

Dangar Stu to the rescue yet again. My poor boat has been sitting on its trailer for 18 months now with other priorities taking place but I like to start it regularly. I was horrified when no water came out 2 weeks ago. Thanks for your help it’s pumping water again. Hopefully I’ll see you on the Hawkesbury one day once this craziness is over. Thanks again.

Thank you for your excellent videos. You have helped me to do things which I did not know how to do without your instruction. Adjusting my valves, carbs,etc. Everything has come out superb. But, I currently do have a problem with my 2006 50hp Honda 4 stroke. I have moved to a colder climate (Idaho). I am actually away from home working the vast majority of the time, so I can't work on it whenever I want. Last fall, I put the boat away for the winter; I do recall that my last cruise I did go through some water right before putting it on the trailer that had a lot of debri. I don't know for sure if that caused the problem, but maybe. About a month ago, on a warmer (non-frozen) day, I pulled the boat out of the garage. I put earmuffs on it; the water pressure was not tremendous, but i thought it would be sufficient. Previous to this, I do not believe I had used earmuffs on this boat; we had moved, and I no longer had the tank to submerge the lower end before starting. The water was not pumping out; I foolishly burned up my impellor as well as melting the upper and lower pump housing. I should add that I have put in a new impellor in this boat myself (after watching your video) a couple of times previously with no problems. I have a very wimpy air pump, but I thought I did feel air coming out the thermostat hole when blowing from the tube from the impellor housing. I ordered parts from boats.net. I replaced everything, including new water seals in the lower housing, thermostat, etc. I thought everything was as good as new. I repeated the same scenario as above, and burned up the impellor and housing even worse this time. It was after this second time that I wondered if I had gotten pickup from the earmuffs. I am currently working a couple of thousand miles away (screw the plandemic). I have again ordered all the parts. I will go home for a 1 day visit in a couple of weeks. What should I do? Thanks again, your videos are great!

great teacher THANK YOU

You just saved me a large amount of work. Was about to pull the impeller and watched your video. The lack of water from the tell take was just debris - probably from the last beach which had a much coarser sand/gravel. A quick poke with and flow returned straight away. Brilliant! Thanks.

thank you for your thoroughness. your videos have helped me diagnose and fix a multitude of things on my boat. i have saved money and achieved a well running boat that was destined for the scrap yard.

Thanks for the video, it was a helpful guide to troubleshoot with. I was having problems with my tell-tale and traced it to the plastic pipe thread to hose connector fitting. Someone sheared the fitting and tried to glue it back on, but the epoxy/glue blocked the hole as well. A couple minutes of careful drilling, a small bolt extractor and a trip to the supply store got me going again though. Again, thanks for all of the helpful content you upload. (this is my first outboard)

love this video ...actually learnt alot from this....other than trying to to understand my mechanic trying to explain how he can make more money on the things he fixed just replacing the water pump lol...thanks mate...ps can you do other motors too like volvo old ones...please

I am learning so much from this guys videos. This is information gold. THANK YOU so much.

Thanks for this. It reinforces what I've just learned from a morning of experimenting and gives me some ideas of what to check next.

Great video as always. I like that you work on Yamaha stuff at your shop. I have a new to me yamaha txr150. Learning lots of tips from you. Never seen a outboard with a timing type belt on it like yours. Interesting!

Thanks for the info. My Yahama isn't either pumping or the hose is plugged at spring startup. I pulled the foot thinking it may be the Impeller but, it looked ok. I had a spare so replaced it anyway, still no water discharge. I'm hoping the small hose is plugged as you showed. While examining the pump I noticed the Plastic Housing had some chips missing where the Shaft exits it. It appears to have gotten very hot sometime in its past. I'm now waiting for a new pump housing but will check the discharge hoses Once again thanks for the Clues. As a wise man once said "Who da thunk it"

Excellent inspiration, got me to tear down me Mercury, since she has been overheating just to the main dock. Thanks Danger Marine

starting my adventure understanding my outboard, and hopefully being able to fix it, this was very informative and has helped me understand a lot .

Dangar, so I disassembled the outdrive again and found the impeller was installed properly. I ran the hose through the flush out hose and water came out of the tube that attaches to the water pump. This showed me all was clear. Then I attached the muffs to the disassembled outdrive and watched to see if water came up the orifice to the water pump. I noted that it barely came up to the orifice. Even as I turned up the hose pressure the water would not come rise but simply spurted out the side of the muffs. So I clamped down the pressure on the muffs and low and behold water came out the orifice. Did the re-assemble and dropped the outboard into the tube of water and all was fine. Thanks again. Felling much more confident as I've now dis and re-assembled the lower unit 6 times. I think I'll have a Scotch.

I thought I was the only person who used the word mungbean lol .... another informative vid so thanks again

Hi Stu many years ago I was a marine diesel fitter (1976) it was the best job I ever had seeing your fault finding with the cooling water on the outboard motor you was working on the impeller is similar to a jabsco pump the water pressure got less as the pump wore out I used to replace all the components inside the pump, impeller, wear plate and end cover, clean out the oilcooler and sea cock then the water cooler for the engine then everything would be normal nice water flow overboard

Hey Dangar, thanks a million bro for this awesome video it was just what I needed. Whenever I have a problem with my outboard I go to your videos. Thnx again 👌🏾

Awesome!..Thanks a lot for being so thorough. Looking forward to not giving all my money to the Marina this time!..Cheers.

The wasps build mud nests in my Merc 50 tell tale so I keep 50cm of whipper snipper line in the repair kit to poke up there.

Another extremely well done and informative video. You are gold to the youtube community! we are lucky to have your channel!

Great video! I never thought to check the tell tale hose for a blockage and was prepared to buy a new water pump kit. Saved me the time and cost of a new water pump! Thank you

I called it! I saw where placed the parts on the fly wheel, and thought please don"t. Question, did you get on video

I have a question, could I drill out that tiny fitting a bit on my mercury to spray more water through my tell tale and try to prevent it from plugging as much?

Just when I was about to drop the leg. You are a scholar and a gentleman. Thank you for sharing your knowledge. For me, it was a blocked "tell-tale". Cheers!

Your page has saved me thousands of dollars! Thank you!!!

Instead of a wire to clear the hose , I use the spray tube off a spray can. Fits perfect threw the fitting and reaches farther without hurting the hose.

In this video you were mistaken, what have been calling the "tell tale" is actually called the piss hole, at least that's what we call it in North Carolina

Dangar Marine, thank you so much! Your calm, common sense instructions are second to none. I always seem to end up watching your excellent videos whenever I'm having outboard woes.. an earlier video you did on carburettor cleaning was very useful and now I am having exactly the issue above. An old but serviced Mariner 20hp from 1998 which has been in the garage for a couple of years that starts but cuts out and the tell-tale isn't working. I'm going to go through step by step and check each potential blockage as you suggest. I hope it's just a bit of dirt in the hose!

Thank you for doing these videos. Was able to diagnose my OB with no water flow from telltale and found a disintegrated impeller. Now just waiting on the post 🤟🏼

Thanks for the insight. I just purchased a 1965- 35 hp mercury that was last licensed in 1989 yep 30-year-old impeller. I have it running but not a drop at the telltale. I did a quick poke in the telltale and it's clear. I will be getting an impeller next step.

Great video. Very helpful currently working on a 150 Force with no water coming out the tell tale. Will go through each step you have explained. Thanks for sharing.

Another great video by the time I finish watching all of your videos I'll be an uncertified marine mechanic. Great job keep them coming

I'm glad you mentioned that some outboards don't squirt that hard - I was beginning to worry about my 93 Evinrude VRO 70 HP. I had a mud wasp nest in the end, and after cleaning it didn't squirt very hard. It was constant and upon running appears to be fine. I had forgotten to stick a piece of weed whacker line in it on storage, the bees don't like if the hole isn't perfectly clear and don't bother with the hole if something is in it! (at least so far!)

I wanted to thank you personally for your vids. I have a 1988 johnson v4 140 outboard i just bought and couldn't find out why i was going so slow when throttle was at full postion. Your vid on spun hubs really help me out thanks

Thank you, your video helped me fix my honda. Very well done.

So good. Looking at a boat with low pressure and barely dripping. This is a good foundation for troubleshooting, thank you

thank you for making this video. at first I thought my impeller went bad. but after watching this video, I found out my tube had debris in it as well as the little spout the water comes out from. now the motor has free flowing water coming out of it.

Thanks! My wife and I drove an hour plus to take a 17 mile river cruise. I ALWAYS make sure the motor is "peeing" before releasing it from the trailer. It didn't, I shut it down and drove the hour plus back home not knowing if it was a bad impeller or something of that nature. Watched your video after I got home, removed the hose on my Yamaha 115 and sure enough a wasp had laid eggs up in the tell tale tube. All good now, and I'll be sure from now on I include the things I need for a fix whenever I take the boat out. Thanks again!

Hi keep it up.you are so explenable.you are saving Lott's of people very simple problems , plus money.I have to really say, that you are a master on your job.good on you.!!! and I wish you well.

Thanks for your efforts. 3 times I pulled the boot after no water flow and on the 3rd time inspected the broken gasket under the silver plate. Gasket swapped, I now have water out the tell tale. With your bolts on the flywheel, you'd fit into the Territory without a problem. Cheers from the Outback.

You solved my question 2 minutes into the video. I was only getting a dribble out of my tell tale and worried that my water pump was not working. Two minute into your video I learned that I could put a paper clip in the tell tale hole and unblock it. I did that and I immediately got a steady stream of water flowing out rather than a dribble. Thanks!

Thanks! Spot on, found the hose going to the cooling channel on the oil pump clogged with bugs...you saved me a grunch of time.

your videos are the best. over the years I have watched almost all of them. keep them coming. two thumbs up from me

Dude, I had this problem with a yam four-stroke 4hp. Watched your vids which helped diagnose, got all the way back to removing the lower with the impeller. The inlet at the entranceway to the impeller was clogged with sand. AWESOME MAN, thanks for posting such great content. BTW, put it back together and ran out on the lake with perfect tell-tale stream... YOU RULE!

You are a legend mate, great video, I stripped my Yamaha F60 down, impeller all good, was a blocked pipe, cheers mate, saved me a fortune 👍

Like your relaxed and informative style with a dash of humour - thanks

Solved my problem within 5 minutes. Thank you!

Very good, I'll check my tell tale out this weekend.

Thank you so much for this video. First morning out on our vacation the alarm went off, no water coming out the tell tail. I watched your video and found the problem was the hose blocked. Simple fix. I thought our week was ruined. Thanks so much!

Well explained and thanx for showing different options for troubleshooting 👍👍👍👍

Great explanation, as log as you have a motor designed like that. Major kudos to this man for taking the time to show/explain this.

Thanks for this video. I tore into my motor due failed tell tale, turns out there was no thermostat. As I continued to watch and tear into it further, the impeller was fine. I found there was some shotty mechanic work they used silicone adhesive to hold the impeller to the shaft instead of a impellar key. I got those parts coming in the mail. Thanks again for the video, you potentially saved my motor.

A great tip you gave to check the weep hole, it was a blocked nozzle, I reamed it out with a small drill as it's just so easy to get blocked. It saved a strip down. Thanks

This channel is great! I have a 1989 yamaha two stroke with 50hp jet. It clogs often because I run through shallow water frequently and suck up debris. I hav adapted a 60ml medical syringe with a tube to push water backwards into the telltale spout on the powerhead. It cleans it out quickly and has kept me from overheating quite a few times. Easy light weight tool that always stays on the boat.

Great video thanks. I just changed the impeller on my Yamaha 25hp 2stroke and it worked fine then after 10 minutes on the river the tail stopped working. Now I need to back track as you’ve shown and check a few things before taking the leg off again. This has helped me lots thanks.

Very useful video. These motors are a little different than your ordinary car motor. Fixed my problem with little effort due to your video. Thank you.

Thanks for the advice mate....i thought my pump was buggerd but my tell tale was blocked..im glad i checked this vid first cheers

Thanks for the video. Really helped me out. Very informative.

Thanks! New to boating and this was exactly what was going on. All is flowing well now!

Just started watching your video, the first solution of a thin wire or clip into the hose worked, bit of rubbish came out and then it flowed like a dream. Thank you. JB

Brilliant channel, great to gain more knowledge as a late budding Engineer.

love your videos mate!!! this one just helped me out.. had the same problem with my Honda b40a. was running a flush but didnt see any water comming out from the tell tell-tail, done what you showed and it was just a clogged tube... thank you sooo much...

Best video i have seen on the water system. Thanks and good job

Best video on checking and testing the water pump/tell/tell

Great help mate thanks for taking the time to make this vid..