Logo

honda bf225

RPM

New member
It has been suggested I change my vst/fuel pump filter. It looks like it is behind the intake manifold. How do you change it?
 
Heck, I forgot how I did it! Nasty Wendy has just been changing out all of his filters, so it should be fresh in his memory.

See item's 7 & 8 in the attached link.
http://www.boats.net/parts/search/Honda/Outboard Engine/2007 and Later/BF225AK0 LA/PIPING/parts.html

Why are you saying it needs to be changed?

The one filter that most often fails and causes problems on the 225 is the High pressure filter. See item 36 in the following link:
http://www.boats.net/parts/search/H...r/BF225AK0 LA/VAPOR SEPARATOR ASSY/parts.html
 
My honda service shop suggested I change the fuel pump/vst filter when I changed my hp filter, mine had failed. After doing all of the other filter replacements, I couldn't find the vst filter. I have looked at all of the schematics and my seloc book, thats almost a waste of money, and have found the vent leg of the tubing and it goes up behind the intake manifold. It looks like only God can get back there.
 
OK. Here is a complete list of the fuel filters on the BF 225, and links to show where they are.

Fuel filters and screens on BF 200 and BF 225
• Low pressure fuel filter 16901-ZY3-003

• High pressure fuel filter screen 16911 ZY3-010. Item 34 at http://www.boats.net/parts/search/H...04/BF225A4 XA/VAPOR SEPARATOR ASSY/parts.html

• Fuel Pump Filter 16911-759-003 (over top of VST)
• Suspension strainer 16915-ZW5-000 (over top of fuel pump filter) See items 5 & 6 at http://www.boats.net/parts/search/Honda/Outboard Engine/2005/BF200A5 XCA/PIPING/parts.html

• Fuel Pump Insulator 16718-ZY6-013 (inside the fuel pump housing). See item 29 at http://www.boats.net/parts/search/H...04/BF225A4 XA/VAPOR SEPARATOR ASSY/parts.html

• Fuel filter mesh 16614-P5G-003 (on fuel rail). See item 4 at http://www.boats.net/parts/search/H...er/BF225AK0 XCA/FUEL PIPE INJECTOR/parts.html


I think you are talking about the 3rd and 4th bullets above. Like I said, it's been a long while since I got in there for my engine, and I don't have my Helm shop manual with me. Hopefully, Nasty Wendy will chime in since he is in the midst of changing and cleaning all of his filters due to contaminated fuel. If not, send him a private message from this forum.

BTW - forget the Seloc manual - too many errors and omissions. Invest the $116 in the official Helm shop manual which you can get from eBay or Amazon. Be sure to get the one that covers your model year.
 
You are right on the 16911-759-003, the schematic doesn't show exactly where it resides. However, it is not anywhere on the outside of intake manifold. I will invest the money, I did for my 9.9
 
That line is just a vent line from the VST. I don't even understand why they'd call anything in that line a fuel pump filter. When the float valve in the VST opens and the low pressure fuel pump fills the VST with fuel that line is where the fuel vapors vent out as the fuel level rises. I've had fuel come out of that line one time and that was because my float valve stuck open and the VST overfilled with fuel. Fuel poured out of that line and would have ended up in the water if the boat wasn't in my yard. That line does not go to the fuel pump and I cannot figure out what a filter would do in that line anyway. Maybe it is a carbon filter to take the bite out of the fuel vapors that do go through that line. Maybe I'm not understanding what filter you are referring to. ????
 
you are also correct in that it is a vent line with a filter in it. Unfortunately, I have the filter at some $30 non returnable, and would like to just change it. So if anyone could help me with the procedure, I would really appreciate it. Obviously, if it involves removing the vst or the intake manifold, I will just put it inventory with my other purchase mistakes.
 
you are also correct in that it is a vent line with a filter in it. Unfortunately, I have the filter at some $30 non returnable, and would like to just change it. So if anyone could help me with the procedure, I would really appreciate it. Obviously, if it involves removing the vst or the intake manifold, I will just put it inventory with my other purchase mistakes.

Ok I understand. I'd change it too in that case. Now to change it without removing components will be "impossible". That vent line travels up from the VST in the "V" of the V6 engine. I remove the intake to access that line. You MAY BE ABLE to leave the intake in place if removal of the throttle body and connection piping grants access the hose from the top. You would have to pull that line off the nipple on top of the VST by working it off with long handled needle nose pliers. Once you get it off the VST you could pull the line out from the top and change the filter and feed the line back down to the VST. I can't see any other alternative to removing the intake. I will tell you to be weary of shortcuts. They typically end up being more work and frustration than the path you thought was to long or hard. Removal of the intake manifold is not a hard job. Now for my opinion : if it ain't broke don't fix it. Good luck and I'll drop in to check on your decision and progress and if you go through with changing it there are enough folks here to get you through the job so don't fear the job if you decide to do it.
 
Last edited:
Here are pics to show the ease of access when the VST and Air Intake are removed.
https://scontent-dft4-2.xx.fbcdn.ne...=74bab136a0da83dd70258608dfdf5b88&oe=5B1A6D46
This is the line at the top of the engine. As it turns out the headache would be getting the bulky filter to pass through the other lines that would be come obstructions if you were to attempt to pull it out from up top.
https://scontent-dft4-2.xx.fbcdn.ne...=cfed01ac682df38fd6cb5c817c5d623c&oe=5ADB552A
This is the vent line where it connects to the VST.
https://scontent-dft4-2.xx.fbcdn.ne...=a50381f644b21ea890aa1bf75589adb7&oe=5AEC0AAF
By feeding the line into the top of the engine and tugging a little on the bottom that plugs into the VST you can get perfect access to the filter to change it.
https://scontent-dft4-2.xx.fbcdn.ne...=226564c7e9496c852fbc9b9f5a50280e&oe=5AEC402F

As you can see it is kinda buried back in there but easily accessible when you remove the VST and Air Intake. The Intake Manifold itself can stay in place. I do have the fuel rails and injectors off on these pics but you won't have to remove them to access the filter.

Click the links for pics. It is quicker for me to give links to pics as I have to jump through a few hoops to get my pics to post now for some reason.
 
Thanks for the pic's and advice. It ain't broke, that I know of, so I think I will wait for another day. My boat was nearly sunk by sea lions a year and a half ago at Rainier Or. marina. Thats how the water got in. I cleaned the tank and changed all of the filters, I thought, thats how the hp filter became plugged and subsequently collapsed. The motor runs fine, should be better now that I have a new hp filter. Thanks everyone for the help.
 
Should you ever have to go in there for anything then THAT will be the time to change that filter if you want to....IMO. Take car. I don't know how I'd handle Sea Lions nearly sinking my boat.
 
Back
Top