Honda BF 4stroke Outboard CARB CLEANING, DISASSEMBLY & INSPECTON

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3 жыл бұрын

This is Part Two of removing and cleaning your Honda BF series outboard engine carburetors. If you missed Part One the link is down below.
In this video, I disassemble the Honda BF50 Outboard carbs, check all of the gaskets and o-rings, clean out all of the jets and fuel passages, and reassemble.
While owning this engine I performed this process at least four times possibly more due to me using regular pump gas. It only took me a few times to realize that using pump gas in these motors was a huge mistake. The slow jet is super small and can get clogged VERY easily.
PART ONE Video - • Honda BF50 4 stroke OU...
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Пікірлер: 84

@logangoree1276 2 ай бұрын

Great video. Honda part numbers below: 17384-ZV5-000 intake airbox gasket 17151-ZV5-000 intake manifold gasket 16221-ZW4-000 carb spacer gasket (x2 for both sides of spacer) 16150-ZW4-000 low speed idle intake jet 16010-ZV4-005 carb gasket set (bowl and jets)

@fitzdawg821 3 жыл бұрын

Probably one of the best, most thorough, and detailed videos I’ve ever seen... not just on the BF50, but on all of KZfaq.

@BackyardBoatworks 3 жыл бұрын

Haha. Thanks hope it helped 👍🏼

@fitzdawg821 3 жыл бұрын

Maybe you can help me out... I bought a 17’ whaler for my 2 boys. I had to do a total rehab, including replacing the foam and the floor. My only real issue, is the wiring at the console. I’ve been looking for months. I have the harness schismatic, but I’m lost when it comes to real world wiring. Emergency kill switch, ignition, tach etc. any ideas where I could see a real world install?

@BackyardBoatworks 3 жыл бұрын

Honestly wiring is not my favorite. I know enough to get most jobs done but I tend to avoid those jobs if I can. Wish I could help but I’m probably not the best to give advice on that.

@jmstep67 Жыл бұрын

This guide just saved my ass. Thanks for the great content

@aaronwarner6060 4 ай бұрын

Yeah brilliant video man - well done - I will definitely be doing this to my bf 40 - thanks!

@Sea2Skyward 3 жыл бұрын

Great video ! Will tackle this job soon.

@BackyardBoatworks 3 жыл бұрын

Thanks

@romanrykun6967 3 жыл бұрын

Great video, Thank you.

@BackyardBoatworks 3 жыл бұрын

Thank you.

@kasperwittrup1288 3 жыл бұрын

I account for like half of the views on this video. I have a BF outboard that has a hard time starting, and rough ideling. Seems like a carb cleaning would be a good thing to try. Thank you for a very informative video, good footage and nice narrating. :)

@BackyardBoatworks 3 жыл бұрын

I had rough running issues with this motor for the entire time I owned it. Some days it ran like new and then the next day it would run like crap. I learned no matter what gas I was using I would still have issues if the boat sat for more than a couple weeks. I started fully draining the fuel out of the system when I knew the boat would be sitting for a while and this helped a little. I could never really get it to run 100% all of the time. I have a feeling the carbs just needed to be replaced but I wasn't willing to spend the money. I ended up selling the boat this motor was on.

@cjw6659 2 жыл бұрын

@@BackyardBoatworks ditto. I have a BF10 - tempramental behaviour, first start fine, then won't restart until fully cooled. If the carb access was easier (for me!) I'd have a go at cleaning, to be honest I feel like passing on the motor and just getting another make.

@KenPhillips-kq6ex Жыл бұрын

@@BackyardBoatworks *"$#$$#2`#

@BackyardBoatworks Жыл бұрын

Your keyboard is broken

@philippechauvrat6731 Жыл бұрын

Thanks a lot!

@2hotscottpro Жыл бұрын

I wondered if slow jet tube had holes in middle.Mine needs a new one.All crusty and blocked over.Exactly what I needed to know.Thanks!

@BackyardBoatworks Жыл бұрын

The first time I did this the slow jet was cracked and I replaced it. They typically have hairline cracks so it’s always ideal to replace them.

@MrHarryson1985 3 жыл бұрын

Immensely helpful

@BackyardBoatworks 3 жыл бұрын

Thanks

@dennisspruill2193 3 жыл бұрын

Informative vids

@BackyardBoatworks 3 жыл бұрын

Thanks.

@guglielmodicarlo4139 2 жыл бұрын

thanks for the video, helped me a lot, would not of seen the jet holes you mentioned, already ordered those , little pricey but what choice do we have,, my problem was a little strange hope it resolves, mine didn t want to max out in rpms,, but its a start,, I already am re doing all the fuel lines etc thanks again

@beaglemanzzz 4 ай бұрын

2:53 An impact driver with a tight fitting philips bit did the trick for me

@willsmith3268 4 ай бұрын

Could I get the part number for the rebuild kit you used? Great video and very helpful.

@oscarhoehandle3173 Жыл бұрын

I have a bf 75 A 75hp 4 cylinder. What would be the part number for the jet set(slow jet), because my tubes are cracked as well???

@TomBTerrific 23 күн бұрын

You make it look simple. I’m thinking of giving this a try. My engine is running great at faster speeds But I’m getting stalling at low idle. Is there a cleaner that can be used that might clean up the jets or carbon deposits?

@paulgoodwin1201 Ай бұрын

Hi I have a 2o hp Honda carb. Should there be a hole in the cap that holds the jet in place. Many thanks Paul

@jeff123411 3 жыл бұрын

Great Video, I'm going to give this a try to get my BAWS-300183 running. Question: Where do you get your parts? Great if I could get a kit of all the common replacement parts before I begin.

@BackyardBoatworks 3 жыл бұрын

Hello Jeff sorry I missed this comment. I purchased the OEM kit from a local Honda Marine Dealer but you can find them easy on EBAY or other marine supply shops.

@chrischavez7871 26 күн бұрын

What is the silver round thing on the side of carb mine is leaking like crazy

@MountainManKm Жыл бұрын

Can you send me a link to the carb kit or tell me where to purchase it great video man

@MsChyna00 Жыл бұрын

Thanks so much for the video. very helpful. I have the same engine. May I ask where you get the rebuild kits. I look on Amazon and Ebay, i'm not sure if its the right kits.

@BackyardBoatworks Жыл бұрын

Any Honda parts supplier.

@Gracernfl 2 жыл бұрын

I bought a used bf40. I can get it to start with choke on but as soon as I let choke off motor stops. I adjusted the idle up and got it running for a few minutes and took it out for about 5 minutes as soon as I went back to idle it quit running. I could use the choke to restart but soon as i choke was off it would die. Any suggestions. Thanks for great video.

@BackyardBoatworks 2 жыл бұрын

When you use choke you’re cutting off air flow to the carb causing an rich air fuel ratio. It’s not good to keep doing that because you are forcing the engine to run. You either have an air leak or you most likely have a clogged or cracked slow jet. The reason it dies on idle is because there’s two jets in the carb one that fuel flow at idle and another that flows off idle. The slow jet has very small fuel passages that clog up easily with bad gas. Use my videos to remove the carbs and replace everything including all of the gaskets, seals, and buy new jets. Good luck.

@barrymccolman3824 2 ай бұрын

I have a BF30A tiller with pull start. After sitting a few days it takes like 50 pulls for it to start with choke on . Once it's running for awhile it will start first or second pull for the rest of the day no problem... then after sitting again for a day or two ...same scenario ...40-50 pulls before it starts. Primer bulb hose is brand new but I noticed it doesn't get firm when priming at first start ...but does once motor has been running awhile . Any ideas.Carb issue maybe?

@BackyardBoatworks 2 ай бұрын

Not sure. Sounds like fuel issue.

@eddmychevalier5073 3 жыл бұрын

Shit i like to see 👏👏👏Great video 👍🏼

@BackyardBoatworks 3 жыл бұрын

Thanks

@MrHarryson1985 3 жыл бұрын

Question, How much compression should this motor have approximately?

@BackyardBoatworks 3 жыл бұрын

I believe the factory specs suggest 199PSI on all cylinders at 500RPM. You may see lower than that but the biggest thing to look for is that all of your cylinders are within 10% of each other. You may see readings like 155/155/158 which would be fine. Anything like 155/135/155 is bad. I found a good thread that talks about how to check compression on these motors. www.marineengine.com/boat-forum/showthread.php?397258-Honda-BF50A-Compression-check

@wallacejohnson2711 3 жыл бұрын

Thanks for the video, good job. Do you have any links for purchasing the carb kits on amazon or other? I have an BF50 on a sailboat and it doesn't get run hard. It starts fine, idles for a minute then begins to idle rough and sometime dies. It's better if I take it out and run it hard for a few miles. I change the oil every season and this year its incredibly dirty. Could it just be carboned up from idling too much? Always use the marina fuel.

@BackyardBoatworks 3 жыл бұрын

It’s been a while since I did this so I don’t know the part number off hand. But a Google search should return some part numbers. The seal and gasket kit is separate from the jets. I would expect that your “slow jet” is either clogged or cracked. That why you cannot run at idle. That is the same problem I would have. As soon as I gave it gas the fuel flow would shift to the larger jet and the boat would run fine. Pull the slow jet out and check for damages. I’d suggest just replace all of them.

@wallacejohnson2711 3 жыл бұрын

@@BackyardBoatworks Thanks for the reply. Yes, I have been searching online and only found OEM individual parts and prices and a few parts discounted on eBay. No rebuild "kits" like for other manufactures. It's about $240 including T&S for parts gaskets and jets. I also checked into having it done at a local dealer @ $200 per carb labor plus parts. New OEM carbs are +/-$200 each but there seems to be a dozen model #'s, some discontinued. Hmmmmm. Like I said, I have only used the gas at the marina and drained the carbs each fall. The motor has less than 200 hrs run time. I'm kind of disappointed with it.

@BackyardBoatworks 3 жыл бұрын

$240 is about right for everything including all new gaskets and jets. You don’t need new carbs I can almost guarantee that and you should only buy OEM Honda parts. Anything else is a waste of money. Just because you buy gas at the Marina doesn’t mean anything. If they haven’t cleaned their tanks or filters you can still get crap in the gas. If anything a Marina will have a lot less maintenance in their tanks and equipment compared to say a WAWA that sells Rec90. Because the slow jet in these motors is so small it can get clogged very easily. It’s not the motors fault it’s the shit gas we buys that’s to blame. I was draining the fuel out of the carbs every time I used the boat if it was going to sit for more than a week.

@guglielmodicarlo4139 2 жыл бұрын

@@BackyardBoatworks Ill cost ya over a hundred to do that, LOL but like I said,, what doesn't cost a hundred bucks these days

@MrHarryson1985 3 жыл бұрын

I wonder if any aftermarket providers came up with a replacement slow jet that didn't have the intrinsic issues of the OEM part

@BackyardBoatworks 3 жыл бұрын

The issues with the jet are mostly due to the very small fuel passages. I do not think anything in aftermarket form would be able to solve that issue. Back in the early 2000s we did not have as poor of fuel quality that we have today and I expect it wasn't as big of an issue. The other issue is the hairline cracking but I expect that also wouldn't see much improvement with an aftermarket version. Its just metal fatigue.

@MrHarryson1985 3 жыл бұрын

Thank for your thoughts. Your videos are very helpful. My father an I are attempting this tomorrow for the first time. Pray for us 😅

@jnunez9670 3 жыл бұрын

I have a bf 75 and it will not idle very well with the choke on and will not run at all with the choke off. I'm guessing its clogged "slow jets" due to fuel. I thought stabilizer would have helped but I should have known better and that I should have disconnected the fuel and purged the carburetors after every use since ethenol free gas is hard to come by. I do that for small motors like lawn mowers and chainsaws.....my question is that it looked like that 50 had 3 carbs, mine I'm guessing has 4. Those gasket kits are around 50$ am I correct?

@BackyardBoatworks 3 жыл бұрын

If it’s running on choke it’s possible you have an air leak in your intake gasket. With the choke on your are forcing it to stay running which I wouldnt do very long. I had similar issues with this motor and yes a lot of the issues came from the slow jet being clogged but it could also be a worn out gasket. I would tear it down and replace all of the gaskets and also check the condition of the slow jet. You might need a magnifying glass to look for hairline cracks in it. It will be very hard to see the cracks.

@BackyardBoatworks 3 жыл бұрын

After the second time rebuilding these carbs I started draining them after every use. It was the only way to avoid headaches.

@jnunez9670 3 жыл бұрын

I didn't run it long like that just a few minutes in the hose.... Think I should check the intake gasket before I mess with the carbs? Thanks

@BackyardBoatworks 3 жыл бұрын

Yeah I would start there but it could be the seal under each carb.

@Nicoolai 3 жыл бұрын

Do you know if ita the same fir a BF60 efi (electronic fuel injection?)

@BackyardBoatworks 3 жыл бұрын

No. This is carbureted. Totally different.

@beyondupnorth 3 жыл бұрын

you wont have problems with efi, because the air cant get to the gas to make it turn to gum.

@matthewbeckwith663 3 жыл бұрын

What function does the air box play?

@BackyardBoatworks 3 жыл бұрын

Its just the main air intake for the carbs

@daveMallery-dg1jl Жыл бұрын

You had to do a carb job two months ago on the same carb? Is there something that can be done to not have a motor that needs a carb job every two months?

@BackyardBoatworks Жыл бұрын

Not really. These carbs are by far the worst I’ve ever owned. The best you can do is drain the gas out 100% after every use.

@terrymunn1224 6 ай бұрын

Hello, at 7:49 the part you call the slow jet that has the o ring on one end is that hollow from end to end .I cleaned my carb and i could see the cross holes in each end however i could not look through the brass piece from end to end .The carb was dirty and gimmed up and motor would not run .Now it runs but needs the carb on. I suspect it that piece in your hand they is blocked IF it is hollow

@BackyardBoatworks 6 ай бұрын

Yes it’s supposed to be hollow. You should be able to see through it to the other side. Also check for cracks.

@TomBTerrific 23 күн бұрын

Wow. I must have a memory problem because I’m going to have to watch the a dozen times I go through this process. Great video with detail!

@lamarware1884 3 жыл бұрын

Do you have the part number for the seal kit??

@BackyardBoatworks 3 жыл бұрын

This is the kit that I used but you need to check your application as they can vary based on year and HP etc 16010-ZV4-005

@GringoSF 2 жыл бұрын

I have a bf 50 hp clean the carburetors it does not remain running at idle and I know what it can be for

@BackyardBoatworks 2 жыл бұрын

Clean the jets

@GringoSF 2 жыл бұрын

@@BackyardBoatworks the slow jet is the fine length that goes inside the diffuser

@BackyardBoatworks 2 жыл бұрын

Yes

@GringoSF 2 жыл бұрын

@@BackyardBoatworks clean all the jets for 2 times and it starts and stops in relanty I don't know what to do is something so easy

@luisjosearellanes753 6 ай бұрын

Tengo un motor 3o honda corriendo pierde carrerA

@pitsmcgoo Жыл бұрын

Those center caps would not come off I ended up breaking a chunk off the carburetor and ruined it had to buy a new carb very expensive. There must be a trick to getting them out.

@BackyardBoatworks Жыл бұрын

Not sure what you mean by caps ?

@pitsmcgoo Жыл бұрын

@@BackyardBoatworks That's the screw you had to get a bigger screwdriver.

@JoseGarcia-lc8ef 2 жыл бұрын

What’s up man I live down street wanted to know if you work on boats:)

@BackyardBoatworks 2 жыл бұрын

No I don’t

@JoseGarcia-lc8ef 2 жыл бұрын

@@BackyardBoatworks lol it’s was a trick question obviously do, i took off the carb from my 25hp Honda BF25A and I can’t seem to remember how to reattach the little linkage, anyways you can help brother

@guglielmodicarlo4139 2 жыл бұрын

I was...... a carburetor guy,, but I can tell you this,, my next outboard will be fuel injected, no doubt

@BackyardBoatworks 2 жыл бұрын

Haha. My Yamaha 90 2-stroke runs like a dream.

@guglielmodicarlo4139 2 жыл бұрын

@@BackyardBoatworks If I had the engineers from honda, most certainly would ask what's up with those jets? I know Honda is the shit, but,,,,,,, really? they must know about ethanol

@BackyardBoatworks 2 жыл бұрын

Agree 100%. I’ve never had an experience with jets like that Honda.