This is one of the best maintenance videos for Mercury 9.9 and similar outboards. It deserves wide viewership. I encourage the authors to produce more. Thank you.
Great video. When changing the engine oil on this outboard, it is very important to tilt down and back up again and drain a second time. There is quite a bit of oil that gets trapped and thats the only way to get it out.
Fantastic video. I do all of these steps to my Tohatsu. One thing to add... At 1:43: After the engine runs out of fuel, apply full choke and attempt to restart it. You will probably find that it will run a little longer. This will ensure that you get every last drop of fuel out. If you take care of your equipment, it will take care of you.
The best informative video I have ever watched for Mercury 9.9 maintenance. Clearly explained most of the aspects. Pls make another one to instruct audioance for carburator maintenance.
My personal opinion is oil should be added until it's at the top mark of the dipstick after a warm oil change because it has yet to travel to all the internal passages within the engines oiling system. After it has been run, then anywhere within the cross hatched area is fine.
This was very good. Thanks. I just purchased a Mercury 9.9 this past week. I also purchased an Evinrude 90 hp Etec last year. No scheduled maintenance required for the Etec for 3 years. And believe it or not, the Etec winterizes itself.
Are there risks if you don't add oil into each spark plug cylinder? Should you only do the oil injection if the engine will be sitting in storage for a few months? For example if you are in the middle of season and changing the plugs, do you also want to inject oil while mid-season maintenance? I am doing spark plug maintenance on my MerCruiser 350 MAG and also my 9.9 Mercury Kicker and will be fishing here in a week. I haven't seen the oil injection yet...and trying to better educate myself without much luck on my google researching. AWESOME video.
First off this is a great video and very helpful. Well done! My question for you is about the oil in the cylinders come spring when dewinterizing. Will this oil make starting the engine difficult?
When starving the engine of gas for long term storage, just before the motor dies, pull the choke full. It will run again for a couple of second. Now you are empty!
For Winter storage should I try to completely run motor out of fuel? I was told by a guy that if you do that then the internal fuel lines may dry out. if the motor is only sitting idle for 3-4 months leaving gas in the internal fuel lines wont really hurt it. Has anyone els eheard that or could comment? - thanx Harvey
Looks like to me that you added 3ml engine oil to the spark plug hole instead of 30ml. I was a little disappointed to find out that. I added about 40ml in total and some went out when I spin the fly wheel. I think I should be good. Hope this does not cause any trouble to others.
i injected 30ml of oil into my cylinders. Now i realize from reading on that it was only 3ml not 30, will this cause me problems with starting up in the spring?
Two things I would do different: Change the oil in the spring, not before you put it away for the winter. Used oil has much better lubrication properties than cold/new oil. Change it when it is warm and when you are about to use it. Also, when trying to evacuate the gasoline... replacing the cap on the fuel line while is running would put suction on the carb. This usually prevents all of the fuel from burning out of the chamber.
You change oil in autumn because old oil can be acidic and can promote corrosion in presence of humidity in winter storage. Old oil can contain water/fuel.
@@SilmarilS79 Yes autum is the best to have fresh, but in reality you never manage to vear it out anyway.I used a Tohatsu 25 four stroke for 12 years, on boat year round and only oil gear oil.Never fresh vater etc, it got stolen at the end. The problem arise if have to change impeller and you dont manage doing it or get proper cooling etc as i tryed no on a yamaha 8.That engine would be replased by a tohatsu 9,8 nekst year.It dont cool properly
The 9.9 Merc 4 cycles have an accelerator pump, and each twist of the throttle floods the engine with a shot of gasoline. Don't flood the engine, with or without the engine running.
Should've filled the cooling system with a antifreeze coolant. When you run it dry moisture can get in there and then freeze. Same with the fuel.. it's better the flood the fuel system with stabilized gas. If you run it dry the left over gas will gunk up. Also should've sprayed seafoam into the intake while it's running until it dies. Now you're winterized.
Thanks for the video!! Very useful tips. At 0:47 the gasoline drops from the tip of fuel line. That is a big problem for me also. Can you advice something to connect them without dropping. Sometimes it drops like a fountain :) and makes me angry after gasoline touch my hands :/ Thanks again.
I've got a 2005 15hp 4 stroke. Had same problem. The seal nearest the ball bearing on the inside of the male fuel connection was ripped, hard to see. Replaced it. Then found a hairline crack in the fuel line connector on the motor, replaced just to be on the safe side. Then found a zip tie that was not tight on the engine side fuel connector. Tighten it and decided it's not a good solution, put in a metal adjustable screw clamp, much tighter. Then I found that the quicksilver 3.2 gallon gas tank uses a circular valve to keep fuel pressure from building at the connections nearest the motor. It connects first to the tank, then hand pump, then to the motor. Now the pressure does not climb and cause dripping with the changes in heat. Also important to understand the valve on the tank cap itself. Hope that helps. Apparently the EPA made changes to the fuel lines or something that has caused problems. I saw a UA-cam video on it. Also, having the tank full helps reduce excess pressure.
@@randomdiyguy1883 thank you very much for your kindly answer.i will check one by one and try all the ways as you told.hope i ll find a solution like you.best.
Great video! But let me ask you a question, why did you use Quicksilver HighPerformance Gear Lube because it was recommended by the manufacturer for motors from 75 HP ?
@@22gladijator manual page 73 Yes, you write correctly, this is for lubricating engine parts. There was a question about the oil that you filled in the gearbox of the engine.
be sure, add 0.8 liter motor oil. if you add motor oil over dose your engine will not start up easly and when you damarage for start up some smoke will puff of from air hole.
Wow i had bought my kids same motor to only have it for less then a week someone stole our little john boat but yes beautiful motor gotta save up for kids dream come true boat one day
I have this same motor is it normal for reverse to be harder to change into then forward? When I go forward it’s a smooth exchange from neutral to forward but reverse its harder to turn the handle and when it does engage it’s more of a hard kick instead of a smooth transition?
read the manual page 77: remove the spark plug and add approximately 30ml of engine oil or inject a five second spray of storage seal inside of each cylinder. A little engine oil left me, so I use the first metod. engine oil or fogging spray is the same thing.
As you Said it is written in the users manual to put 30 ml oil into each cylinder but you poured 3 ml . Or did you repeat what is seen in the video 10 times for each cylinder ? In fact, It seems to me that 30 ml of engine oil might be very much for each cylinder. In other videos that I watched about winterizing, recommended amount is a spoon of engine oil four each cylinder.
Sooo whats the point in injecting oil in the combustion chamber and cranking to lube the (cyl walls) but if it sits for several months if not half a yr (canada) n if stored in garage or outside the oil will just sit on the bottom anyways. Altho ppl might say due to oil film. However there should be film anyways since it has been running prior to service....but thats just me
@@onetwothreefour111Might want to re-think that. I saw a guy get thrown out of his boat and his boat kept circling him in the water for a long time until it ran out of gas. We could only watch from the shore. No one could get near him to rescue him.
water will show in the removed gear lube as a white creamy consistency. If that happens. you need to check for bad gasket sealing or have a professional check it.
carb models are cheaper. if you use ethanol free gas itl'll be fine if not run a stabilizer. efi is a little better at fuel usage but more expensive if it breaks cost more up front too. its really customer preference. personally i can clean a carb out on a lake. if fuel injection quits get the oars out
carb is fine. Buy a used one if you want to save $$. Also it is nice and broken in. We bought a 2012 merc this year. Just replaced the fuel pump and did standard maint, oils, plugs, and used seafoam to clean the hell out of the fuel system and it runs like a top.
This is one of the best maintenance videos for Mercury 9.9 and similar outboards. It deserves wide viewership. I encourage the authors to produce more. Thank you.
Was gonna say the same thing. Would be nice to have another video with voiceover and maybe some new owner/boater info tips.
One of the easiest videos to follow on UA-cam. Great job!!
Great video. When changing the engine oil on this outboard, it is very important to tilt down and back up again and drain a second time. There is quite a bit of oil that gets trapped and thats the only way to get it out.
Тhis must be done 4 times !!!
@Wertu Fgui my manual says only twice. Why 4 times?
This is one of the coolest, most straight forward, and WELL PRODUCED videos I've ever seen on UA-cam. Thank you. 🙏
Wow one of the best videos I've seen.. No crap talking just useful information with calming music. Thank you
Fantastic video. I do all of these steps to my Tohatsu. One thing to add... At 1:43: After the engine runs out of fuel, apply full choke and attempt to restart it. You will probably find that it will run a little longer. This will ensure that you get every last drop of fuel out.
If you take care of your equipment, it will take care of you.
Just bought a brand-new 2021 Merc 9.9, this is the EXACT video I was looking for. Great work.
you were ripped off. buy used :)
@@fizwin1 ... or save your money and buy whatever you want, new or used :)
@@fizwin1how do you know the pervious owners had access to this video and took care of it right?
Everything is simple and understandable, without unnecessary.
I just bought one of these today. I really like this video and I will use it for reference. Hats off to razor bb-8 for putting out a SOLID video.
The best informative video I have ever watched for Mercury 9.9 maintenance. Clearly explained most of the aspects. Pls make another one to instruct audioance for carburator maintenance.
Great video! I appreciate you taking the time to do this as I'm a very visual learner so reading manuals doesn't often help much
Nice video! I just bought a 2006 9.9 four stroke today. I'm about to order all the stuff to change impeller, fluids, and spark plugs.
do tou know of any videos to change water pump impeller
2015.outboard marcouri
What is the consumption of liters per hour of this engine? I would like to know consumption gasoline outboard 9.9 4 stroke seanovo
My husband died and I needed to know how to do this. Great video.
Hey I love the video! Which lubricantiob do you use for moving parts/prop? Thank you
My personal opinion is oil should be added until it's at the top mark of the dipstick after a warm oil change because it has yet to travel to all the internal passages within the engines oiling system. After it has been run, then anywhere within the cross hatched area is fine.
One of the best videos yet! Can you do one on how to change out the water pump/impeller? Thanks!
Sorry, you have to wait some time cause I was replaced my 9.9 for 20efi this season.
This was very good. Thanks. I just purchased a Mercury 9.9 this past week.
I also purchased an Evinrude 90 hp Etec last year. No scheduled maintenance required for the Etec for 3 years. And believe it or not, the Etec winterizes itself.
Jay Shaw Yeah beautiful 2 strokes :D
What is the consumption of liters per hour of this engine? I would like to know consumption gasoline outboard 9.9 4 stroke
Thx for sharing. Just bought a used one....will change oilnsoon in both engine and lower unit. Good chance it's never been changed.
Are there risks if you don't add oil into each spark plug cylinder? Should you only do the oil injection if the engine will be sitting in storage for a few months? For example if you are in the middle of season and changing the plugs, do you also want to inject oil while mid-season maintenance? I am doing spark plug maintenance on my MerCruiser 350 MAG and also my 9.9 Mercury Kicker and will be fishing here in a week. I haven't seen the oil injection yet...and trying to better educate myself without much luck on my google researching. AWESOME video.
This is a wonderful video (even though I own a Yammy F9.9). You should be getting a royalty check from Merc!! Thanks so much!!!
Good power heads them yamahas, we’ve got 3 going strong well over 2000 hours, enjoy it mate 😉
First off this is a great video and very helpful. Well done! My question for you is about the oil in the cylinders come spring when dewinterizing. Will this oil make starting the engine difficult?
Great informative film. I have a mercury 6hp four stroke how much oil would you recommend injecting into its one cylinder? Many thanks
Very well done video. Show, don't tell
What is the red light for? :) good video!
where did you get the gear oil pump? thats handy
Very useful , thankyou, when adding oil directly into the cylinders, did you mean 30 or 3 ml ? , ( the srynge shows 3ml, not thirty )
3 ml. My mistake, sorry
Yea bud I added 15ml like, 🤦🏽♂️ this is way too much, smoked like a mofo on the first fire up ! 💨
When starving the engine of gas for long term storage, just before the motor dies, pull the choke full. It will run again for a couple of second. Now you are empty!
Good tip wil try that thanks!
For Winter storage should I try to completely run motor out of fuel? I was told by a guy that if you do that then the internal fuel lines may dry out. if the motor is only sitting idle for 3-4 months leaving gas in the internal fuel lines wont really hurt it. Has anyone els eheard that or could comment? - thanx Harvey
@@harveypeterson9637 I starve all my marine outboard for 10 years without any problem with fuel lines.
@@SilmarilS79 Thanx Johnny!
great video, thanks! why pump lube in from bottom rather than put bottom screw back in and funnel in from top?
to avoid air bubbles.
Great video! Really helpful, thank you!
Oldie but goodie! What kind of lubricant / grease is recommended for the moving parts?
Thank you for your inspiring and excellent video!
Good video keep it up with more nice and easy tios and tricks
Very helpful. Tired of paying marinas to do this job and waiting forever for the work to be done. Thanks.
Great video, so helpful. Nice music too!!!!
Великолепно , всё понятно без слов!
Is there a drain screw on the carburetor Bowl to remove every last drop even though it shuts off a carburetor Bowl usually retain about 1 oz of fuel
Hello! Great video, the best. I have a question, how can i do to unwinterizing this outboard? I apreciate you help. Regards.
Most excellent video.
Is there any concern or additional steps required for storage in freezing garage over the winter ?
No. That’s all.
yes, instead of flushing with water, flush with water line antifreeze instead
Looks like to me that you added 3ml engine oil to the spark plug hole instead of 30ml. I was a little disappointed to find out that. I added about 40ml in total and some went out when I spin the fly wheel. I think I should be good. Hope this does not cause any trouble to others.
i injected 30ml of oil into my cylinders. Now i realize from reading on that it was only 3ml not 30, will this cause me problems with starting up in the spring?
Very good video and relaxing 😌
Before removing the lube syringe, would it lose less lube if tilt motor up?
No oil filter?
Excellent video sir! Thank you!!
Two things I would do different:
Change the oil in the spring, not before you put it away for the winter. Used oil has much better lubrication properties than cold/new oil. Change it when it is warm and when you are about to use it. Also, when trying to evacuate the gasoline... replacing the cap on the fuel line while is running would put suction on the carb. This usually prevents all of the fuel from burning out of the chamber.
You change oil in autumn because old oil can be acidic and can promote corrosion in presence of humidity in winter storage. Old oil can contain water/fuel.
@@SilmarilS79 Yes autum is the best to have fresh, but in reality you never manage to vear it out anyway.I used a Tohatsu 25 four stroke for 12 years, on boat year round and only oil gear oil.Never fresh vater etc, it got stolen at the end. The problem arise if have to change impeller and you dont manage doing it or get proper cooling etc as i tryed no on a yamaha 8.That engine would be replased by a tohatsu 9,8 nekst year.It dont cool properly
Привет с России.У меня такой мотор,третий год полёт нормальный.До этого был 6 л.с ,13 лет всё хорошо.Масло лью Квик Сильвер тоже
Do you use ethanol free gasoline? Or standard? Just got a 6 month old one today.
The 9.9 Merc 4 cycles have an accelerator pump, and each twist of the throttle floods the engine with a shot of gasoline. Don't flood the engine, with or without the engine running.
This just convinced me to buy an electric outboard motor.
Thanks Man! Really good video!
This is a great video!
Should've filled the cooling system with a antifreeze coolant. When you run it dry moisture can get in there and then freeze. Same with the fuel.. it's better the flood the fuel system with stabilized gas. If you run it dry the left over gas will gunk up. Also should've sprayed seafoam into the intake while it's running until it dies. Now you're winterized.
Thanks for the video!! Very useful tips. At 0:47 the gasoline drops from the tip of fuel line. That is a big problem for me also. Can you advice something to connect them without dropping. Sometimes it drops like a fountain :) and makes me angry after gasoline touch my hands :/ Thanks again.
I've got a 2005 15hp 4 stroke. Had same problem. The seal nearest the ball bearing on the inside of the male fuel connection was ripped, hard to see. Replaced it. Then found a hairline crack in the fuel line connector on the motor, replaced just to be on the safe side. Then found a zip tie that was not tight on the engine side fuel connector. Tighten it and decided it's not a good solution, put in a metal adjustable screw clamp, much tighter. Then I found that the quicksilver 3.2 gallon gas tank uses a circular valve to keep fuel pressure from building at the connections nearest the motor. It connects first to the tank, then hand pump, then to the motor. Now the pressure does not climb and cause dripping with the changes in heat. Also important to understand the valve on the tank cap itself. Hope that helps. Apparently the EPA made changes to the fuel lines or something that has caused problems. I saw a UA-cam video on it. Also, having the tank full helps reduce excess pressure.
@@randomdiyguy1883 thank you very much for your kindly answer.i will check one by one and try all the ways as you told.hope i ll find a solution like you.best.
Great video! But let me ask you a question, why did you use Quicksilver HighPerformance Gear Lube
because it was recommended by the manufacturer for motors from 75 HP ?
manual page 73: Gearcase lubricant recommendation: Mercury or Quicksilver Premium or High Performance Gear Lubricant ;-)
@@22gladijator manual page 73 Yes, you write correctly, this is for lubricating engine parts.
There was a question about the oil that you filled in the gearbox of the engine.
Wertu Fgui think he’s just answered your question mate
How much engine oil do you use for a 6hp Mercury 4 stroke?
Great video! How did you remove the oil dipstick?
By pulling it
Excellent video. Many thanks!
Wonder the reason for running the motor to get it warm, is it so gear oil will drain better , or what
Both, gear and engine oil
Almost perfect. I put a little anti seize compound inside spark plugs turns and I put fuel stabilizer first and then run her. Just in case ...
be sure, add 0.8 liter motor oil. if you add motor oil over dose your engine will not start up easly and when you damarage for start up some smoke will puff of from air hole.
awesome video. thanks!
Tohatsu owners may also watch as its the same engine
Yes. Tohatsu factory build Mercury.
But the question is still why?
Do they dont fight against others anymore? Hehe i think japanese quality is good
Yeap Mariner 9.9 15 20 too
Идеально 👌
Excellent tutorial!
Do I have to flush the cooling system if I use the motor in a fresh water lake. Seems like a salt water procedure.
no, you don`t have to do it.
@@22gladijator Great, thank you.
Maybe I missed it, how much oil did you have to add?
Rebecca Neher - it’s written in the manual.
Wow i had bought my kids same motor to only have it for less then a week someone stole our little john boat but yes beautiful motor gotta save up for kids dream come true boat one day
Outstanding!! Thank you so much!
Will this procedure be the samr for 2007 mercury 9.9?
I have a 2007 Mercury 9.9 as well and this is the same.
What is the consumption of liters per hour of this engine? I would like to know consumption gasoline outboard 9.9 4 stroke seanovo
~ 3.5l
I have this same motor is it normal for reverse to be harder to change into then forward? When I go forward it’s a smooth exchange from neutral to forward but reverse its harder to turn the handle and when it does engage it’s more of a hard kick instead of a smooth transition?
yep. idle may be too high. Also mercury had some recalls on some years of the lower end gearboxes.
Where do you get the rubber cover that protects the fuel line connector
It is factory part and comes with the new outboard
I wonder what the Mercury engineers were smoking when they designed the gearbox fill system.
lovely motor, whats the weight?
i have this one, its 84 pounds dry
what is that device you used to pump the oil into the bottom part
nevermind
How its called?
Is shooting oil directly into the cylinders better the. Using fogging oil? I mean they are so easy to get to I see why you did that
read the manual page 77: remove the spark plug and add approximately 30ml of engine oil or inject a five second spray of storage seal inside of each cylinder. A little engine oil left me, so I use the first metod. engine oil or fogging spray is the same thing.
As you Said it is written in the users manual to put 30 ml oil into each cylinder but you poured 3 ml . Or did you repeat what is seen in the video 10 times for each cylinder ? In fact, It seems to me that 30 ml of engine oil might be very much for each cylinder. In other videos that I watched about winterizing, recommended amount is a spoon of engine oil four each cylinder.
Sorry, this is mistake in manual. Ofcourse, 30ml is too much. 3ml is just enough
I know nothing about outboard motors. why do you start engine at the full line and not at start? thank you, i hope to own one some day
It doesn't really matter if at start or full throttle. It's for cold starting. Once the motor is hot, it will start at idle without choke.
Thank you
Fantastic Video
Very well done
Sooo whats the point in injecting oil in the combustion chamber and cranking to lube the (cyl walls) but if it sits for several months if not half a yr (canada) n if stored in garage or outside the oil will just sit on the bottom anyways. Altho ppl might say due to oil film. However there should be film anyways since it has been running prior to service....but thats just me
the fuel can rinse that "film" off. Also it is better to keep the carb wet in the winter. Some disagree. Everyone has an opinion
Can you start a new 2020 mercury 9.9 hp outboard motor in a lake without attaching the red shut off cord to the switch?
Yes
yes, I have a 2020 9.9 and I don't use the tether cause I find it gets in the way
@@onetwothreefour111Might want to re-think that. I saw a guy get thrown out of his boat and his boat kept circling him in the water for a long time until it ran out of gas. We could only watch from the shore. No one could get near him to rescue him.
@@tomd7516 ever catch a fish while trolling and having to try and reel in a fish with an outboard strapped to your wrist.
@Rob Cann I tie the end of the landyard to my PFD. Never an issue. I always wear one on the water, just in case.
Excellent video!
Thank you very much!
Tnx!
Excellent video, EXCELLENT
Great video easy to understand and useful
Do 9.9's have an oil filter??? I am looking everywhere for it and cant find it.
No oil filter on 9.9
@@22gladijator you are 100% sure? Thanks for responding
@@22gladijator Are you 100% sure? Thanks for the amazing video. I used this to change my oil.
mine has one left side of engine next to the electric starter
No oil filter on our F9.9EH. There is no oil pump so the filter would be worthless :)
Hello 🙂 what is the music name?
What is the plug for to the left of the vent plug on the lower unit
Flushing plug to rinse salt water without engine on.
@@harryj1081 I guess they must make a hose fitting for that
Почему на нейтральной передаче не поднимается мотор???
Um. What about the oil filter?
There's no oil filter on the 9.9 hp.
How do you make sure there's no water in it
water will show in the removed gear lube as a white creamy consistency. If that happens. you need to check for bad gasket sealing or have a professional check it.
thank you so much :)
Where's the oil filter?
What oil filter? This outboard does not use one.
My 2020 Suzuki 9.9 has an oil filter
В редукторе масло не разгорелось .
Fantastic video!!!
could anybody help newbie boater out, should i buy a mercury carburetor or Fuel injection (EFI) engine for low costs and ease of maintenance?
carb models are cheaper. if you use ethanol free gas itl'll be fine if not run a stabilizer. efi is a little better at fuel usage but more expensive if it breaks cost more up front too. its really customer preference. personally i can clean a carb out on a lake. if fuel injection quits get the oars out
@@richardcranium5839 appreciate it !
carb is fine. Buy a used one if you want to save $$. Also it is nice and broken in. We bought a 2012 merc this year. Just replaced the fuel pump and did standard maint, oils, plugs, and used seafoam to clean the hell out of the fuel system and it runs like a top.
Good video!
Thanks ... it's nice vid
👍🔥