How To Clean A Mercury 2 Stroke Carburetor 1986-2006 6.0 8.0 9.9 15 HP Rebuild Carb

[@deanh7190]

Hi Sterling, Thanks for posting this video. Very helpful👍 Referencing 10:00 on the video: I discovered an improved way to place the thin gasket portion when assembling the fuel pump. I placed it onto the outer housing / cover, dropped the bolts through and then easily placed it atop the rest of the assy. The hanging screws automatically align the gasket perfectly and it went right together.

[@martinmarine529]

Good idea!

[@moomba2009]

Great video. Very clear and easy to follow. I'm told "don't lose the BB"... the kit is expensive. I'll be tackling this today.

[@andrewelliot7039]

instablaster

[@jackb2542]

An excellent video, I used it for my first attempt at a rebuild but a significant improvement for this process is after the carb is mounted to the block but BEFORE bolts are tightened (just catch some of the threads on the studs) and all other steps you mention are completed, install the idle/choke assembly. This made the installation very much easier as compared to what was demonstrated in your video.

[@rweinc1424]

Very well done! The best and most accurate of all the demonstrations! Very much appreciated!

[@bretryan4151]

Thanks Sterling for a great instructional video. Just a warning to others , as my kit didn't come with the paper gaskets for the brass screws. It had a stainless and a brass washer that didn't fit them anyways. So make sure to do as you say and get the genuine kit. Cheers from Australia and keep up the great videos. Cheers.

[@randycox7749]

Good straight forward instruction without all the fluff.

[@ArkansasAdventuresWithMark]

Thanks for the great detailed video on this carburetor cleaning and rebuild. I would have never tackled this project had it not been for you making it seem so simple. Same with the video about replacing the thermostat. My motor thanks you also! Glad I found your channel. Keep making these Mercury Outboard videos. I'm sure I'll need more info soon.

[@pascaldeladurantaye3948]

I just did it at home thanks to your video. Thank you so much!

[@micskates420]

Thanks for the great video. Just cleaned my carby on the 2002 15hp and your video helped me out big time!

[@davidaguiar1387]

Thank you for this! Love these 2 stoke Merc's with shift in the tiller feature. My favorite PB's of all time really. Just bought another (well used) 15 hp and it's going to need a carb rebuild this weekend.

[@Mr-Myautorepair]

Thanks, I look forward to more interesting content on these 2-stroke engines. Greetings from Italy

[@kieranburns648]

This was a really helpful video and I was able to rebuild easily. However the little gasket shown at 6:15 in the video with the channel cut out. Should fuel come out of this when priming the engine with the fuel bulb? or have I missed something, Any help appreciated.

[@the-trojan]

Great video! concise well thought out production

[@alexzeleny3926]

@14:08 - You reference a little BB that gets dropped back into the hole on that primer. What symptoms would be present if the BB were not there? I disassembled the carb to troubleshoot a flooding issue. There was no BB under the spring. It's not the first time the carb has been opened, so I'm wondering if the missing BB is causing the problem.

[@BlockdAccount]

Missing the check ball in the primer for the carb and want a cheap replacement? The detent ball in a 1/4 drive socket extension fits and works. I used a cheap extension from an impact extension (1/4 hex to 1/4 square drive) and carefully cut the ball out.

[@robdonald1246]

Excellent. Good step by step video. Good pace for the inexperienced to follow. Nice calm voice to keep you from getting too uptight.

[@robertraymond2236]

Great video. I ran in to an issue.... After reassembling my fuel pump body is cracked and leaks. I suspect I over tightened it or maybe it is just too old and is falling apart. I have to order a new fuel pump kit now. Hopefully that gets me back on the water.

[@danottie5369]

Very informative and very well explained (like a real pro).... Thank you !

[@antoinegoulet590]

Such a good video. Just tackled this with my 17 yr old son for his motor and worked like a charm. Truly appreciate this video. Thank you.

[@frank8534]

thank you for taking the time and making this video.

[@martinmarine529]

No problem glad you enjoyed them!

[@hunterslifestyle625]

Awesome video, very thorough!!! Thanks

[@randyluvan9623]

Great video! Just cleaned mine and followed your instructions. My kit must be different because some of the gaskets was a lot easier than yours.

[@wadewacker7276]

This video is a God send!! Thank you sir. Well explained👍

[@billgregory9560]

is this the same for a 25hp mercury 2 stroke 1986 motor, best instructions out there thank you

[@beverleygregory]

this was the best info out there thanks

[@riverrivers250]

@7:50. That top part bubbles out gas on mine…. When at full throttle it wont leak but when it bogs down at full throttle it bubbles/leaks gas,,,, can it be cause the holes are clogged up????

[@neiloboidicin5815]

Best videos on KZbin. Trust me I have watched them all. Quick question... The correct side up of the float and float height. The manual states one inch, but it doesn't say 1 inch from the needle rim end or 1 inch from the bottom of the bowl (top of the centre tube). Thanks for the content. Ever in Ireland... I'll buy you a pint... or two.

[@82HEADCASE]

Absolutely fantastic video and watched just as I ordered a kit for my yr 2000 mariner/mercury carb Now I have a step by step Thanks agen👍

[@brod12313]

You are an awesome human being

[@robguilfoil2470]

Very precise explanation. Thank you.

[@ryanfarrell400]

Thanks mate great vid. Helped me along the way !!

[@stevejones6111]

Great video. You explained it well. That looks like a good quality carb kit. I bought a carb kit from an E-Bay vender for my 1999 Mech 25. It has a very similar carb with slight differences from this one. Taking in the account that these kits will fit many different carb applications you need to check the fit of the gasket against the OEM gaskets. Air flow is important. In my kit the gasket between the carb and engine had to be re-cut to add the circular cuts in the sides of the big opening like the OEM gasket has. On the same gasket the small hole that connects the engine vacuum to the fuel pump was placed wrong. It looks like a slot opening on the after market gasket. I had to take a paper punch and make the slot longer to align the gasket up to the opening in the carb so the vacuum flows unrestricted.

[@martinmarine529]

Yes the carburetors on the 25 are very similar. I’ve used the same kit a few times and it seems to work well I ordered the rest of them that he had in stock at the time.

[@joemoore1379]

Love the video! Once reassembled I get fuel dripping/squirting out of the section that has the spring (video reference 3.20) is that supposed to happen? Gasket seemed fine and screws were tight, theres a little hole on the side it comes out of

[@stefanvanvee]

Thanks for the video, very helpful! Greetings from Holland :-)

[@Mikey_Neuman]

hey man just wondering how to just the timing and possibly adance the timing

[@szymonderda5871]

Hello, can you please provide the catalog number of the repair kits for this carburetor

[@johnmurphy5931]

Trying to rebuild my buddy’s carb on his new to him 2003 25 Merc. Can’t seem to find a kit. Why would they discontinue it?

[@joej.4170]

I have gas coming out of the small vent tube that goes to the crankcase in 2 places. Not sure why. Soon has i turn the motor over gas sprays out of the small tube. I rebuilt the carburetor but thinking it may be the reed valves? Not sure how to test those or replace them?

[@Hefner413]

Thanks for the video! I am in the process of cleaning my carb. Unfortunately my carb does not have the TOP plate cover that you remove at 6:20. Is this part vital for function? Thanks

[@boatrvme8478]

No...some models don't have cover.

[@kxfishhunt2331]

My spring shot off and is now lost time to order a new part smh thanks for your video

[@thomaskeeney7445]

Where can I find the part number for carburetor? I've tried looking on the Mercury website in the parts catalog but it doesn't pull up ANYTHING for the serial number on my unit.

[@dannyrusso8279]

I very nice video, considering I'm rebuilding the same carb. One question.... what energizes the fuel pump? On many fuel pumps I see at least two ports, in and out. On this fuel pump there are no ports. Is the pump operated by the suction in the carb itself, and all fuel connections are located within the carb? Also, I had a leak in the small diameter hose at the bottom of the carb. What is that hose for, overflow gases?

[@melinh70]

Thanks for video and repair kit information

[@michaeljdixon1]

Very well done! Thank you

[@jefflobbestael3176]

I appreciate the Carb rebuild video - where's the follow up for tuning?

[@WilliamLake-o5r]

Very informative. Thank you.

[@rrumbler1]

Like all the others said excellent video and thanks for putting it out there. What wasn’t excellent is that I did loose the bb that goes inside the accelerator pump any word on where I can find one or part #?

[@georgie2158]

I opened my carburetor and previous owner lost small BB ball. What does the small check ball BB do?

[@andrewdickinson7503]

Where can I find a new ball bearing that is in the carb? Part number plz

[@brianperkins6121]

Because the fuel and air passages in the carb body turn and redirect in directions you dont realise they can and often do project a stream of eye burning carb spray "right back into your face" its a good idera to wear chemical protection safety glasses whenever you use carb spray to clean a carb body.

[@chadschafer3890]

I have a question for you. I have a late 80s merc 2 stroke 9.9 and i was rebuilding the carb. I of course lost the bb that you had at the 14 min mark in this video. I cant find that part by itself anywhere online. Is it available or do you have any idea where i could get one. Really appreciate any feedback

[@sandrahealy8302]

Thank for your great videos. I got my carb cleaned but the top of my fuel pump broke off right after the motor started. ( the piece that has a screw through it). What is that screw for? Will the fuel pump work with that piece broken off?

[@mariocamalieri8109]

Thank you, great video!

[@mugsymydog]

Sir, I have a 1986 Mercury 6hp but my carburetor does not have the plastic assembly with the spring and diaphragm in it. Mine has a solid piece thith the stop screw in it. I believe the model is Wmc5a. I do not understand how this pulses to get fuel ? There is nobody in my area that works on these old outboards. there is also a hose off the carburetor but not in the same location as the one on your carburetor. It was not connected to anything. I see a "T" in your vent hose , can you tell me where that hose connects on the engine ? Thanks

[@bryanhuff5671]

Very good point about the ball ( BB ) on the carburetor Bowl. I sure hope someone looks at these comments again because I'm right in the middle of rebuilding my carburetor and the little BB I speak of is missing! Where can I get another one? I've looked everywhere and can't find one. Hope somebody can help me. Thanks

[@martinmarine529]

I seldom just find me on Facebook. I just type in Martin Marine and look for my logo with the guy in the Jon boat silhouette.

[@bryanhuff5671]

Thanks for your reply, but not sure what you are referring to? Do you know where I can get ahold of the little BB or ball I am speaking of? Thanks very much.

[@benkanobe7500]

Do you guys sell the original Mercury Kit or is an aftermarket OK?

[@ericwozny8268]

Great video but I need help with my 1978 model. Can I update to a new carb?

[@triplex7144]

Hi mate do you have a vid for the 1997 20hp ml?

[@eveliohernandez603]

Very very very good video. Thanks

[@schoonysbugz7273]

What is the purpose of a choke friction ball? The "bb" you said not to lose!? I bought a motor that someone lost the spring and ball...carb kit came with spring but not the ball.

[@Mighty131313]

I ran into the same issue on a 1988 mercury 25 hp. What part number did you find on that bb and where did buy it?

[@zachnielsen5279]

I know you didn’t say 25 hp but would it be the same? Mine is a 2000

[@patduurloo7077]

I'm doing a 18hp.,marina sold me repair kit #1399-8153, missing some parts. He said the year is 1983.is this the correct kit? Serial#8013056 7:10 7:10 7:10 7:10 7:10 7:10

[@craftbrewer5401]

I have a 2-stroke 9.9 Mariner outboard 1989 that I am working on. If I pour gas into the throat of the carb, it starts and stays running. It also restarts on first pull. But if I leave it one day, I can not restart it without pouring gas into the carb. Any idea what to look for on the carb?

[@boatrvme8478]

Fuel pump.

[@geesss8675]

How can I get the small BB in the primer enrichment above the spring? I dropped mine and cannot afford $130 for a complete overhaul kit. Excellent video. I just found your channel and subscribed.

[@martinmarine529]

Find out Facebook page we sell them.

[@jeffreydennis3337]

Is this carburetor similar to a 1983?

[@Andrew-vc4pj]

Which way does the float go on? Is there a way to tell on the piece?

[@jeromequequesah3800]

Hello I have a 1989 Mercury 9.9 2 stroke. I ordered a carb rebuild kit from a local shop and they gave me a Yamaha kit. I called and they said it will work but I'm still unsure. Will it work?

[@toddlevick6016]

Do you have one rebuilding the carb on the 5hp Mercury 2 stroke? I inherited it from my dad and I know it hasn’t been started in at least 8-10 years. It’s been stored inside in a dry location. I’m guessing it’s somewhere between a 1986-2006. I have the serial number but not sure how to find out more about this motor including the right carb rebuild kit.

[@michaelmarshall7745]

Awesome video!

[@SpencerClayton-ps1of]

I lost the bb that goes inside the spring. Is there any way I can get a replacement part?

[@frankajello]

Any luck

[@frankajello]

Mine just looks bad

[@Andrew-vc4pj]

Do you have a link to the gasket replacement kit?

[@cpwatching5647]

Well done - thank you!

[@goneFishing-yx5zy]

Is that carb the same as a 1995 mariner 25hp

[@georgie2158]

What would a shop charge to do this exact job?

[@sampotter3436]

To take them out rebuild and put back in probably 500-1000 depending on rate

[@quinnhaynie7767]

@@sampotter3436and a brand new OEM carb is around 400

[@johnmcgee1144]

Great video i would just like to ask will that gasket kit fit a mariner 25hp i have looked in the service manual and can not find parts number in it thanks in advance

[@martinmarine529]

Yes same kit

[@johnmcgee1144]

@@martinmarine529 thanks Martin

[@seananholland3726]

Thank you again! So helpful.

[@MIAFIRE]

Martin I rebuilt the carburetor and still does not start how do I know if I am getting spark

[@eduffy4937]

Can unscrew plugs and connect to plug wires and look at visible spark.

[@garyslate2789]

I'm looking for some parts for my vintage 1968-1970 mercury 6 HP main fuel line to carb and gasket set if possible to help. Very apreciated thanks.

[@Jimmiwhispers3]

Sooo what happens if I lose that little bb?!👀👀👀

[@davidcastano7009]

Hola me podrían alludar que número de chicler lleva Mercury 15 hp americano gracias

[@Nimashet]

no adjustment video?

[@hunterterrell]

Great videos. I have this same motor and really appreciate the content. I would love to see a short video of one of these motors running correctly at idle and at speed. Mine smokes an excessive amount (or at least I think it does). A video of a correctly tuned/maintained motor would be a great reference. Thanks for the videos!

[@martinmarine529]

Sometimes you just need to get out there and run it on the water. These motors don’t like to be at idle for a long period of time they will start to build up and smoke a lot.

[@SHJ1011]

Where did you get your rebuild kit? I think I need a whole new fuel pump, but I cant find one anywhere.

[@Nick-cq1ps]

Great tutorial!

[@tommylowe549]

Great video. I did everything then reinstalled the carb primed it and it started. It run great for a min or two. Now when I prime it gas comes out of the hole on tHe fuel pump. Any suggestions on the problem.

[@melinh70]

Where’s the hole on the fuel pump?

[@huntersalyers1689]

Hey I was wondering where I would be able to buy a BB for the primer. I purchased this motor used and it doesn’t have one when I took it apart. If I can’t buy just the BB will something that I can buy local work?

[@lindsayhawkes5446]

Did you by any chance find out what the size of the BB was I am in need of one

[@huntersalyers1689]

@@lindsayhawkes5446 negative, just bought the whole kit

[@harrykapper7410]

I replaced the float and I'm not sure if I did it right. Is there any advice on the little piece of metal that creates the spring action?

[@measurelessmotivation]

make sure the pointy side is facing down when you drop it in the hole

[@Upliftyourbrothers]

Thank you!! I have a question. In the hole on the bottom that the main jet holds the bowl on. When I look up inside those threads there is a brass piece. It looks bent off to one side. What is that and is there a way to remove it?

[@martinmarine529]

I would replace the jet

[@hansmeyerplett]

I would also like to know....

[@jnfrnnds]

Thanks for the video man, it is really usefull!

[@martinmarine529]

No problem anytime!

[@clark5486]

Martin, where can I get this rebuild kit? I can't find the right one

[@emmagranton4107]

Perfect, thank you

[@keeganic84]

Will this kit and video work for the Force branded 15 hp outboard? 1984-95

[@martinmarine529]

No

[@pacman4568]

Nothing will help a Force engine.

[@Tiamu-df4mh]

why did you get a gasket with an improperly sized hole in? I have a 1998 merc 25 hp 2 stroke and when i call merc they ask for my serial number so i can go find the right parts...i haven't ordered it yet but are you saying they might send me the wrong gaskets? if i order parts and give the rep my serial number and that rep send me the wrong gasket or anything else, that person is going to have a really really bad day. please explain how you ended up with a gasket that doesn't fit?

[@martinmarine529]

It comes with gaskets for 6-25hp it has both in the kit.

[@rabahsakhraoui6448]

Thank you for this beautiful video. Sir I'm from Algérie. you can tell me how can i get this repair kit i have mercury mariner 9.9 2 strocke engine. and can you find an address to buy it. Thanks very much.

[@wmantlo]

Hi! Does this same kit fit the 25HP model? (same years)

[@martinmarine529]

Yes

[@johnjones-uz4pi]

Hi. I'm so glad I've found your channel. U are a great engineer. I've just bought a 15hp 2 stroke Hangkai outboard direct from china. I believe they r a complete replica of a discontinued line of Older Mercury engines. Do u know if the part numbers in your vids would be compatible for me? Many thanks.... jj

[@locknload9143]

Just subscribe to your Channel... Bought a 2006 9.9, 2 stroke mercury. Hasn't run in 10 years . What do you suggest I do besides watch all your videos lol, which I intend on doing...Just rebuild the engine on my truck but, boat engines I have no experience whatsoever. 😅

[@martinmarine529]

Water pump / clean carb / gear oil / Thermostat

[@locknload9143]

@@martinmarine529 ..Hey man thanks for the quick reply! So I was wrong...Apparently it's a "1986, 9.8" (110) with Thunderbolt egnition..Atlest that's what the guy claims, I picked it up from... The #'s on the front are worn off, so I can't get a serial. Do you know if they marked it anywhere else? I wanna rebuild the carb. but need a year. The wiring was just horrendous, it had brakes on every single wire and even in some spots, the sheathing was missing...So far I've removed the flywheel and stator then rewired everything completely right up into the stator. Cleaned points and replaced the flywheel and a new Woodroof key...Now being a different motor, do I even have a waterpump/ thermostat?...I'm learning as I go here watching your videos,(great info btw)..Just finished the wiring and now I'm looking for a year so I can rebuild the carb next...I have some downtime now and I'm going to continue watching your videos.(not quite sure how to do the gear oil just yet).. Any feedback would be greatly appreciated, Thanks again brother! 🇨🇦 P.S. lol..being a 9.8, can I just follow the basics of this video or, do you have one specific to a 9.8.?

[@locknload9143]

I followed my water line after watching your video on the 2000 mercury. I'm assuming my thermostat is on the side with eight bolts holding it down...Your videos don't show 9.8's..Is that going to be a problem?

[@Ken-tc5mp]

Hi Sterling .Great video/instruction. -I want to just replace my jet, as shown in part of your vid. Can I just order that? My 8hp 2stroke '97 merc starts on first pull every time..idles well, runs very well low speed and med speed. Bogs down and starts to stall when attempting high speed. Used to work very well on High. Think the jet is partially clogged. -Also..any vids coming about adjusting the carb while running past + - the 1 1/2 turns you advise. Thank you Ken

[@martinmarine529]

Yes you can replace the jet. In the part of the video where I show you how to spray out the jet if you look in there you will see a flat tip screw. You can just screw that out and that’s actually your jet.

[@michaelredford7869]

@@martinmarine529 so the little piece you put in point facing down it won’t go in and stay straight

[@scottzaboski2808]

How about working on a 1985 Mercury 75 hp 2 stoke

[@jasonm5288]

I have a 115hp mercury 2 stroke 1995 outboard. I don’t have the serial number, but would this carb kit work?

[@carpediem19999]

probably not.