Remove salt build up Yamaha outboard 40hp block head restoration Challenge get motor running 30 50 

Well done. Nice to see blokes having a go instead of just buying new, saving themselves money and learning at the same time

Bloody Brilliant Mate just doing the same with a mariner 676 built by yamaha. !!!

Walking us through the water flow inside the engine head was GREAT! Thank you for your research and the effort you put into this excellent instructional, educational and entertaining video!

Pure OCD on display. 😂 watching you clean those passages spotless was a beautiful thing. .all that elbo grease goes a long way. That motor is good for another 15 yrs now.

I can tell you from my experience that sadly most of my customers don't give a flying f**k about paying for this service - until it's too late and they have to pay way way more to get a replacement engine. I do this to my own engines mostly

Excellent, informative video. Being a Yamaha 2 stroke triple fan, I learned a lot. Thanks.

Man, what a great way to start of my day. Excellent video. I subscribed right away. Done thorough and done right with very good commentary.

I had a 90 same year I ran it in a 50 gal tank mixed an acid solution and water it cleaned it right up engine runs to this day!

good work mate thanks heaps.

It’s great the manufacturers support a full range of spare parts, despite the unviable economics of commercial deep maintenance.

Hi mate this is a great video i have a 40hp bit older than yours but i did the same thing only i stripped it right down ,cleaned the block and head and cover with CLR and like you wire brushes fitted new rings honed the bore new gaskets in carbs new gaskets through out new coils ect basically rebuilt the engine , yamaha say to run your engine for a min of 15 minutes as you say to let it get up to temp and the thermo to open , in the end with mine i upgraded to a fourstroke but it will help many others who a mech has told "throw it in the bin" it is a two stroke engine really an oversized lawn mower and with out cams and valves ect easy to work on again great video .

Excellent video, great content and tutorial

Awesome work!!

That was a really good video mate.

I would have used white vinegar to dissolve the salt

what brand aluminum putty did you use to fill the area at the bottom of the head?

Nice! Did you take off side cover as well to inspect ?

you can use hydrochloride or sand blast!

This is just the inspiration I needed. I have a Yamaha V6 150 two stroke that's overheating and I'm pretty sure the water channels have _never_ been cleaned. I called mechanics and at 125.00 per hour for such a _simple_ repair is absolutely preposterous. This is _not_ that difficult of a job to do. The _only_ issue is whether you can get the bolts out without them breaking, because if they break it's not going to be easy to get them out. If all the bolts come out then it really is just a matter of cleaning and clearing, and putting it all back together.

Excellent, might have to do my 30, cheers and make a video

One thing the mechanic where i get my yammy serviced mentioned was that many don't flush the motor long enough - he said a minimum of 5 minutes . I have always used the same procedure on every motor i have owned - start it and let it run until the thermostat housing gets hot( i can see the flow from the prop hub has increased so i know the thermostat is open ) turn on the saltaway flush unit , disconnect the fuel line and run it until the motor starts to miss and shut it all off . Not sure how good the salt flush stuff is but it does take salt off better than fresh water - would love to see the water jacket of an engine that has used this stuff from day one to see if it really does stop salt build up .

If I remember my metallurgy correctly a carbon steel wire brush should not be used on aluminum, at minimum it should be made of stainless steel. Otherwise dissimilar metals corrosion can be a problem.

How much did you pay for the motor before the work was done?

Hey brother, nice show, it identifies everything im showing guys..lol.. to cool. I have 3 episodes. Ep1 I just posted on this,,, I love the word challenge. so I found a product and a way to make the inside of the engine completely free of build up. episode 1 is a test of SALT AWAY AGAINST RYDLYME AND RYDLYME REALLY WORKS, IT DESTROYS SALTAWAY, THEN EP2 IS HOW TO BUILD A SELF CONTAINED FLUSH SYSTEM FOR UNDER $150. Just remove thermostats AND ANODES IF THEY HAVE THEM turn the pump on and FLUSH, this is the cool part, the product is measured in PH, so you can run it on the pump until what goes in for PH as a clean fresh cleaner comes out clean as it went in because when it breaks down build up it raises the PH..If a motor like your was on this set up, doesn't need to run the engine just then pump as long as the PH is rising is eating away at scaling and everything else, I am confident it would work. I really want to find another engine like that to do this test. If you watch my EPISODE 3 HOW TO FLUSH WITH Rydlyme you will see how I do It and maybe test to. let me know if want a link, not trying to post on your stuff, just like your videos it is so relative to mine. And you said challenge. lol

woow what a good feeling after done all that clean up at to have that peace of mind even you catch more fish hahahah

Awesome have a 25 SJ yamaha need to do the same thing too

Well produced video, clearly spoken and informative. Yamaha engines are pretty stout. So you'd say the bulk of your time was just spent doing a thorough clean, something that shops wouldn't do unless you paid them well for it? It didn't look like difficult work, just time consuming! 🙂

Nice video, thank you. Question ; Yamaha 250 ox 66. When I get back to the dock and hook up a hose to the engine flush hose , if the thermostats are closed , where does the water go ? which part of the engine is not getting fresh water to? thanks

Just a tip when you're torquing head bolts never do the full spec at once do it in 2 stages

Scared tapping method, 2/3 ‘s in, half out pop, and hopefully the brushing dint rip off coating, argghhhh

It isn't worth it for a shop to do that kind of good job, but that does not mean the motor is junk. If you've got the time and the knowhow, or know someone that is willing to do it at their leisure, most of these motors can be saved. I shudder to think of how many good motors were scrapped because someone said its not worth it.

I always take my boat on a long freshwater lake cruise at least once per year. I hope it's actually as beneficial as my brain thinks it is.

Don’t worry about breaking bolts. There’s lots of instructions on utube for fixing the issues arising. You should have drills and taps at hand beforehand, they’re cheap and at the least all the threads should be chased clean before reassembly. Thread repair kits are now cheap on line too, so don’t worry. You cannot begrudge the mechanic charge out rate, if he can do the job well, he (she) is well worth double. Sadly and happily the new smaller engines are so cheap it’s simply not economic to maintain an engine to this level. I do it only to keep a 2002 two stroker going as the equivalent four stroke is nearly twice the weight.

hello, nice video... congratulations... the thing that terrifies me the most is breaking the screws that fix the cylinder head, I saw that you only broke one. my engine seems to have the perfect cooling circuit or anyway working but doing a compression test it only gives me 65 psi in all three cylinders. but it doesn't seem that bad to me. this is the test video.

Did you need 1 gasket for this job or 2? Did you just use the gasket sealer on one of the faces? Doing mine this week, any advice appreciated

Onya mate. Very good video. I own a Yamaha 90 and did the same job. I am curious why you didn't pull off the side cover over the exhaust. Mine was as chockers as the head!?

Bloody legend mate! Made it look doable as I am in the same situation with a Johnson 110hp (86 model). Marine Shop said its not worth fixing! Any other tips before I give this ago. Worried it may also need be machined too. Subbed!

How did you repair the hole at the bottom of the block?. I have the same issue with my 50hp Yamaha. Thanks

Best to run the motor until tell-tale water is warm so thermostat is open then flush with a product like Salt-Away, Salt-Stop, Salty Captain or many others. Prevention is better than cure! Nice recondition job though!

Excellent clip! Would you please tell me which parts that need to replace when performing this job? I'm about to follow yours to clean up my 90hp Yamaha 3 cylinders. Thanks.

I would have put rags in the cylinders. Then salt and dirt do not end up there or find their way into the crankcase. Am I wrong?Otherwise a very good video. Thanks . Maybe you should also tape over the cylinders?

Why not boil, blast and machine?

Hello guys, I bought a boat with an old Yamaha outboard 2-stroke engine built in 1983 50HP Model: 6F4 and I can't find a parts list or repair instructions. This engine is not listed anywhere. I'm desperate, someone please help me. Thanks in advance

Didn't know you can crank it without the cover 😮 so is it all the starters job?

Did you ever think about ultrasonic cleaners?

Has anyone ever told you that you sound like Eric Banner ?

What is the difference between the new 40hp enduro 2 cylinder?

Could you use a 3,000 or 4,000 pressure washer??

Do you flush your motor after using it?

i love seeing this, when mechanics turn there nose up so you say f0ck you hold my beer ill do it myself..... welldone mate you earned this one.

My two cents say's the block requires resurfacing. I don't know, I am not an expert.

outboards unfortunately are a very flawed system, especially in saltwater.

Is she still staying cool?

I'm now paranoid of running in saltwater

Makes me think maybe run the motor for a minute after flush with no water to push final bit out? What are your thoughts on this?

I have a 40enduro 2005

140 hours!!!! 😳😳😳. Christ…did they never flush it?!?!?

Those cylinder compressions weren’t that great. Should be around 125 psi .

They cost about 2 k here so that mechanic was talking shit

if its not kept in the fully down position, water can definitely stay in the block. so many people leave their motors tilted all the way back for the winter... ice loves that. but the issue here is some complete idiot didn't flush this poor thing out with fresh water before letting it sit for a decade.

Yamaha is junk.