Clogged fuel injectors in BF50D 2008

[spine001]

I have a Honda outboard BF50D 2008 in a remote location. I left it with gas for 15 years and it had ethanol. The electric fuel pump doesn't work when I turn on the ignition. I am planning to go there again with the necessary tools and spare parts to make it work again. Otherwise the motor is new. This time I drained it and then run it with pure gas in the air intake, then drained it again and added oil to the cylinders and the WD40 to the air intake while running the crank. When I come back my plan it to change the electric fuel pump and the plastic connector to make sure it has not deformed as some have suggested it can happen (part 27 in the schematics). I also suspect that the injectors may be clogged so I will go equipped with new fuel injectors and new gaskets for them.
I need help figuring out what other tools or parts should I bring. I will have a set of wrenches and other common tools at hand, but no idea if I will need fuel injector extractor tool or if I just take out a fuel line and the injectors come out alone. Can somebody provide me with some guidance? Or where to get material to read or get a service manuel for the 2008 BF50D?
Also any other parts I should bring just in case? Once there I will be out of luck.
Thanks in advance for any help.

 

[jgmo]

Hi,
Well, as the teen girls say....eeeewwwww!
I literally made an involuntary face when I read your post.

I don't know man but yeah, item 27 for sure but, after all that time, I would also be tempted to take every seal in there or on there or for anything you think that you might "disturb" while working on this.
Items 12, 13, 15, 28, 43, 45....
A new filter for sure...item 34 and it's seal...item 14

And I would be VERY concerned about the diaphragm being brittle and failing in the pressure regulator...item 31... along with the seals...item 10...if you remove it.

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It looks to me as if the fuel rail holds the injectors so just unbolting it will probably facilitate removing them without to much effort. But I've never replaced any so I don't know what access is like. I don't work on these so I'm just making some guesses here. If you really want to know, here's where you can order the authorized shop manual:

Honda Marine | Shop Manuals Publications | Honda Power Products Support Publications

publications.powerequipment.honda.com

Looking at other "stuff", you don't mention the water pump. That would be something I would replace after all this time.
The cooling system can cause you plenty of headaches especially if you're boating in salt water. Consider replacing the thermostat and seal.

I might also replace the little inline fuel filter...item 9 in the link below.... although you could just clean it out with some spray cleaner if you have any.

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I think some basic hand tools will be all you need but you might consider taking some spare fuel line and vacuum tubing along with a set of small bottle brushes for swabbing things out. Especially the fuel rail and tubing.
A metric oring kit might come in handy too.

No matter what all you take to the bush, you'll likely end up needing or forgetting something. It always happens like that in "the way back" so I wish you good fortune with this project.

 

[spine001]

Hi,
Well, as the teen girls say....eeeewwwww!
I literally made an involuntary face when I read your post.

I don't know man but yeah, item 27 for sure but, after all that time, I would also be tempted to take every seal in there or on there or for anything you think that you might "disturb" while working on this.
Items 12, 13, 15, 28, 43, 45....
A new filter for sure...item 34 and it's seal...item 14

And I would be VERY concerned about the diaphragm being brittle and failing in the pressure regulator...item 31... along with the seals...item 10...if you remove it.

Honda Outboard 50HP OEM Parts Diagram for Vapor Separator | Boats.net

Buy OEM Parts for Honda Outboard 50HP Vapor Separator Diagram

www.boats.net

It looks to me as if the fuel rail holds the injectors so just unbolting it will probably facilitate removing them without to much effort. But I've never replaced any so I don't know what access is like. I don't work on these so I'm just making some guesses here. If you really want to know, here's where you can order the authorized shop manual:

Honda Marine | Shop Manuals Publications | Honda Power Products Support Publications

publications.powerequipment.honda.com

Looking at other "stuff", you don't mention the water pump. That would be something I would replace after all this time.
The cooling system can cause you plenty of headaches especially if you're boating in salt water. Consider replacing the thermostat and seal.

I might also replace the little inline fuel filter...item 9 in the link below.... although you could just clean it out with some spray cleaner if you have any.

Honda Outboard 50HP OEM Parts Diagram for Tubing | Boats.net

Buy OEM Parts for Honda Outboard 50HP Tubing Diagram

www.boats.net

I think some basic hand tools will be all you need but you might consider taking some spare fuel line and vacuum tubing along with a set of small bottle brushes for swabbing things out. Especially the fuel rail and tubing.
A metric oring kit might come in handy too.

No matter what all you take to the bush, you'll likely end up needing or forgetting something. It always happens like that in "the way back" so I wish you good fortune with this project.

Thanks so much! I was such an idiot, I believed at the time that all I had to do was to run the motor with the fuel valve closed until it stopped and all gas would be gone... We were able to run the engine by feeding gas from a carburator cleaner can into the air intake, the water pump worked perfect. I did clean it for very long times with fresh water every time I came out of the sea. Do you still think I should replace it? The bill is going up and up like a ballon...

 

[jgmo]

Sure, I get it....it hurts.

I will answer your question about the pump like this:

I've seen a few testimonials about water pump impellers lasting a decade or more but my experience is that 4 to 5 years is about max before they start falling apart.

Sitting for that period of time may have taken a toll on the impeller vanes. They may even look and feel pretty good now but if the material is hardened or breaking down, they could be falling apart without much use at all.

I have also seen pumps make a great looking pee stream but, when opened up, only have 1 vane that hadn't broken off!

Be aware also that, if the pump does start "shedding vanes", those pieces can be forced up into the engine and cause you no end of misery when they block the coolant passages.

Statistically, over 50% (actually I think it's much higher) of all CATASTROPHIC engine failures begin
with a compromised cooling system.

So just keep that in mind if you choose to chance it.

Good luck.

 

[spine001]

Thanks!

 

[spine001]

Wow~ I thought the water pump was an item I could replace, but I only find parts for it. Does it mean I have to dismantle it and change the impleller? My guess is that I will need parts 1, 3, 4, 5, 7, 9, 32 from the water pump schematic. I am assuming Iwon't need the impeller housing part 6. Is that correct?

 

[spine001]

And for the Thermostat, in the Cylinder block parts diagram, I need the parts 11, 30 and 8. Correct? Thanks so much! This will save a lot of time to anybody who has a similar problem.

 

[spine001]

I am attaching the list of parts in case somebody needs it. Please let us know if there is anything missing. Thanks so much!

 

[jgmo]

That is crazy to me that the impeller is "unavailable"!
I guess Honda's trying to run off their customers.
Although, I guess that's just the way of the world now.

I'm going to suggest that you go to an aftermarket supplier like Sierra and see if you can find one there. If so, get that...I might get two and carefully store the spare along with the one you take out if it seems to be in good shape.

Since you say that the outboard has very little use, I would then only buy a new oring seal...item 37 in the link below.... and re-use everything else.

Make sure you take a tube of marine grease to lube the pump and prop shaft.

Honda Outboard 50HP OEM Parts Diagram for WATER PUMP | Boats.net

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I don't know what Honda thinks is going to happen to their reputation if people can't get basic maintenance parts but I guess they're livin' high on the many government contracts they've got.....for now.

So, excuse me while I go see what I can no longer obtain for my 2006 model!!

Sheesh!

 

[jgmo]

Yes, 8, 11 and 30.
Save all that comes out looking good for spares.

I know it's extra work and expense but it's also peace of mind. And... having a decent spares inventory is a "good thing" as Martha Stewart would say.