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Looks like the same one i just boughr and put on my 87 Johnson 150 v6.

What you showed here is easy, i tried for long time to get the gear housing back on, splines arent matching. And tried to spin propeller and engine while pushing up, not possible... Think engine is ready for som dynamite

+++!

All I want to know how did you get 2 Land N Sea Catalogs lol

Does this also apply to smaller outboard motors? I have a 20hp mercury 4 stroke that won’t idle. Seems like a clogged idle jet.

Please how can I contact you? I really need help

Brilliant and informative video thank you

Thanks - I needed to know what problems are caused by the fuel level in the float bowl.

Hi there, enjoy your videos on the marine service, I am having an issue with the Mercury 40HP 4 stroke, I only had it for a couple of years, and bought it used, It ran ok for the first year, then one time the overheating, went away. then this has been quite frequent, I replaced all the water pump parts, thought was the problem as there was a significant amount of water being discharged. First run-out last week same thing but it seemed to get hotter more quickly. Removed the thermostat, tested on the stove by gently heating up the water, and opened it up at 180, did the test a few times leaving it to cool but found the thermostat to be somewhat sticking. The spark plugs look great fuel burn is excellent. should I try a new thermostat or do you think it could be a head gasket issue. The compression test on all cylinders is within spec, appreciate your input.

The hydraulic steering on my Yamaha 2005 makes it almost impossible to fit the greaseguns nozzle in to grease the tilt.

Non ethanol fuel no longer available here on southern Vancouver Island ! CHEERS from Here1

So should you replace pump after cleaning or only if noise is still there after cleaning?

We are having a problem with it not peeing. We changed the impeller and no luck. When we put the salt off the water runs good but when we try flush engine from water intake we get no peeing and the if small amount of water, it feels hot. Any ideas?

This is why I dont remove and change the impeller by my own because I cant reinstall it so hard . I dont wanna destroy anything on my shaft or so😮

Thank you flr everything i do it on my own as well. But is it better to het the motor running some minuter before or so so the oil is a bit warm and flush out easier than a cold ?

I just purchased a used Yamaha 15hp and figured I would clean the carb and found this same problem. Thanks Jim

This was a great video one of the best instructional videos I’ve seen of a carb rebuild. Great job.

What kind of clamp/vise is that supporting the lower unit? I am trying to find something similar to that for my own workstation. thank you! Your video is excellent.

Thank you for sharing your skills, could you tell me is the 30hp,four stroke the same set up as that 40 hp. motor . i am about to do mine. thank you. Aussie Chris

I recently purchased a marine engine diagnostic Ouija (weegee) board. Can’t wait to try it out!

I’m surprised you just don’t have an iPad for that. You have to bring out your whole laptop?

super interesting and valuable. Thanks. I wanted to add on my side, the electrical connectors attached to the high pressure fuel pump are often the cause of electrical issues leading to a noisy whining fuel pump. There might be a little weakness on those parts..

Really good instructions and explanations of how everything works and the causes and consequences of various faults, etc.

Also,, the little red duck bill vent in the gas tank cap, swelled up and would not vent, used a small pic to dig that mess out. Guess yamaha uses poor quality rubber products !!

Thanks for the info, i just ordered 2 after market carbs from amazon one manual choke, one electric, incase the carb fails out on the water, keep them in my tool kit. I hate my 15 yama 4 stroke lol

Nice job, my new 15 yamaha 4 stroke new yamaha tank, and hose not broken in yet. After the winter had no high speed. Open it up clean gas and high speed jet had small brass fleck in it from factory. That automatic electric choke i dont trust. I have yamaha 3 and 5 hp, 2 stroke best running motors i have ever seen. This 15 yamaha 4 stroke worst motor i have owned. My Suzuki 25 4 stroke 3 cyl 3 carbs nice motor!

I just installed new prop shaft seals. My 115 2 stroke has a different style thrust washer (not the same as the specified part in the service manual). I think I should change to the correct part (6E5-45987-01-00) because the new seals are so deep in the cavity I really think something should be on top of them to help hold them in place. (The drive shaft seals have a cap that secures them below the impeller plate.) Does the thrust washer you installed here fit inside the outer shaft housing and rest against the top seal? Or is there a space between the seal and the bottom of the thrust washer?

Thanks for taking the time to share your knowledge. Having seen this Im going right now to check the idle problem I have with my almost brand new 20 hp honda engine. Its idle circuit or probably float problem. /Thanks in advance! Regards, Johann from uruguay!

How do you grease a stiff throttle on a tiller Yamaha?

If you lift the motor after the initial drain and bring it down again you will be surprised how much additional oil will drain out. It will also make way less mess when you unscrew the filter :)

I cleaned a rebuilt everything and replaced all of rings and gaskets put everything back in spec and mine still takes forever to start even on a summer day. It’s a Yamaha F50TLRA 2002. 120psi compression all spark plugs are sparking well. The starter on cranks one second at a time and drops back down and it takes about 20 times for it to fire and then it runs fine. Any tips?

very nice video. thank you.

Why does Yamaha recommend 46 ft lbs of torque if it doesn't require much torque to hold the nut on? Seems a little shady. Always go by the manufacturers recommend torque specification. Otherwise you could find yourself missing a prop.

Watch all the angles and holes when spraying carburetor cleaner you might get a shot in the eye ask me how i know , were safety glasses.

How do you buy fuel without ethanol the only place I know that sells that type of fuel is airports?

Great video I'm going true some problems on my 1993 5.0 four winns 190 horizon after changing the water separator filter can get it to start I dint fill it up with fuel I believed I air lock the fuel system 😓🥲any advice . Thanks .

Love it the best explanation of problems with carbs and how to correctly clean a carb the best on you tube

Awesome video!! Thanks so much!! Very professional...step by step....so helpful!!

There are not enough superlatives to describe your videos! I learned so much about so many things - the actual water pump impeller check, various greases, how you use your tools, hydraulic locks from grease in the wrong places......Now, how do I get my motor from the US to you because we just don't have shops of your excellence here in Maine. I guess I'll just have to watch every Yamaha 50 video you put out. You do all of us such a huge service by making these great videos - including all the tips along the way. Thank you just isn't enough. I got concerned about my impeller when I found coarse sand in the water pump indicator stream. After clearing the sand, the starboard (right) side return hose is still not free flowing. If you have time to comment, how concerned do I need to be about cleaning the entire system?

Great video! If there is a trick when inserting the splines, that could help a lot. That was the part where I was struggling a bit.

I have a 2013 fourwinns 4.3 225hp gxi Volvo Penta, Volvo has replaced 6 fuel pumps under warranty and I am currently in my boat putting number 7 on. Im not sure if they ever checked or replaced this regulator but im replacing it now. Thanks for the videos it's a huge help.

are all lower units all the same for installation and take off?

Gen II drives only need to be remove for inspection every three (3) years (as per Mercruiser's own service manual). A visible inspection of the bellows from the outside is all that's required. MC-1, R, MR and Alpha One drive DO need to be done annually.

Hi, You really explained that well. I have confidence that when I do the things you talked about that my problem will be resolved. And if it is not, it will certainly be of value to the engine. Thanks Mate!

Thanks!

Great Video...Thank You!

Very nice how to. Thank you

You showed the pickup tube orientated on its side parallel to the bottom of the tank, is that correct?

Awful one

Hi I have a 8 hp 4 stroke 2006 . Do you know the factory seting for that small jet . I took it out without checking . I will try one full turn . Nice to know. Thanks.