Topic: Missing petcock filter

[TurtleSnifferII]

Does the cb650c 1980 have a fuel filter in the built into the tank? I have an inline  fuel filter that I wanted to remove and rely on the stock one but it doesn't appear to have one. I dont know what it looks like and theres nothing inside the tank. The clear tube is perfectly clear nothing inside to filter anything. I dont recall it having one when I first flushed the tank when I was removing all the rust. Thoughts?

[Don R]

 They get old and fall apart, possibly removed by a PO. I remember buying new ones, not sure if you still can.

[Can550]

In my case it was stuck within tank. Had to spray wd40 and pull it out. Have a look there you might notice a yellowed plastic


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[TurtleSnifferII]

I looked everywhere and its not there. At least it confirms I dont have one. That explains why crap got in the carbs and caused problems back then. Looks like Im going to have to buy another petcock since I cant find the filters  by themselves for sale. It really bungs me out.

[bryanj]

It should have one and the O ring frequently wont seal if it isnt there. Last time i checked onlyCMSNL had a few and they were very expensive, does come with the tap but that is even more expensive! What diameter is the threaded boss on the tank?

[Deltarider]

Maybe you could try parts of the strainer set 16952-341-671. But I would first check if it fits, by lending somebody else's. Scrapyard maybe? Forsaid strainer set was on:
 CB400FA (76) SUPER SPORT 400 FOUR, JPN, VIN# CB400F-2000001 TO CB400F-2008280   
 CB400FA MOTORCYCLE, JPN, VIN# CB400F-1000006 TO CB400F-1038492   
 CB500TA MOTORCYCLE, JPN, VIN# CB500T-1000001   
 CB550FA (76) SUPER SPORT 550 FOUR, JPN, VIN# CB550F-2000003 TO CB550F-2010866   
 CB550FA MOTORCYCLE, JPN, VIN# CB550F-1109886   
 CB550K1A MOTORCYCLE, JPN, VIN# CB550K-1200001   
 CB550KA (76) 550 FOUR, JPN, VIN# CB550K-1230001   
 CB750FA (76) 750 SUPER SPORT, JPN, VIN# CB750F-2000003 TO CB750F-2022317   
 CB750FA MOTORCYCLE, JPN, VIN# CB750F-1000002 TO CB750F-1015054   
 CB750K5A MOTORCYCLE, JPN, VIN# CB750-2500001   
 CB750KA (76) 750 FOUR, JPN, VIN# CB750-2540001 TO CB750-2575894
 source: https://www.hondaparts-direct.com/honda-motorcycle-parts
Although the filter looks fragile, mine is still OK and filters fine.
For folks that only need the O-ring, although it is not listed as a separate part, for Honda's outboards (Honda Marine) it is. Partsnumber there is 16997-467-000 and the dimensions are 11,8 x 3,55 mm. I thought I had to replace my O-ring (it looked worn) but by 'negotiating' the position of the big nut that has two threads, it seals well again.

[johans]

jtmarks77   on ebay has all original Honda parts , great source .

Had a strainer stuck inside the tank once , thought it was not there. Don't buy aftermarket petcock , had one leak right away.

[ekpent]

  Mark me down as the 3rd one who has had one stuck in the bung hole.  Oh my- that sounds kinda bad   

[pjlogue]

jtmarks77   on ebay has all original Honda parts , great source .

Had a strainer stuck inside the tank once , thought it was not there. Don't buy aftermarket petcock , had one leak right away.

I too had bad luck with after market petcocks.  The one I bought had a black hard plastic adapter where the tube went for the main feed and the hard plastic didn't seal.  It did not come with any washers and even if it did there wasn't enough length to the adapter between the petcock and the tank bung to catch any threads.

-P.

[carnivorous chicken]

Inline filter would work. People ehre and elsewhere rant and rave against them -- some because they say there are already filters either in the petcock bodies or the sleeves on the tubes -- but I run 'em and have never had a problem.

[TurtleSnifferII]

Thanks for all of the replies. Do you think I could just buy an aftermarket petcock and rip the filter of that one and put on the old one or are they designed different depending on the bike? I was thinking something like this.
https://4into1.com/honda-motorcycle-fuel-valve-petcock-16-x-1-5mm-1/

I just blew over 150 bucks on new coils and dont got much $$$ left for this thing. This POS has already  had enough my wallet by pretty much replacing everything on this with oem rubber seals.

[carnivorous chicken]

Dunno if it would fit, but that "filter" doesn't look like it would stop much. Inline fuel filters are about $3-5.

[TurtleSnifferII]

I would love the inline fuel filter which is what I was using but the line has to be routed horizontally which was messing up the flow and possibly causing me some vapor lock when hot.  I suspect that when it gets warm is messes up the flow and leans the bike and makes it pretty hot which is why one of my coils probably got cooked. I have the PD carbs and there is not enough room a filter even the 90 degree ones I've seen out there. The bike came routed like this when I got it but with a plastic filter which I replaced with that red one.

[Deltarider]

Inline fuel filters are about $3-5.

All I know, inline filters on a CB500/550 (and maybe other models) is not a success. You don't want your bike to stutter unexpectedly whilst overtaking with uncoming traffic. Then a $3-5 filter can become a very costly one. I have the cold sweat on my back again every time I think of it. That's enough to make one 'rant and rave against them'.

[carnivorous chicken]

Inline fuel filters are about $3-5.

All I know, inline filters on a CB500/550 (and maybe other models) is not a success. You don't want your bike to stutter unexpectedly whilst overtaking with uncoming traffic. Then a $3-5 filter can become a very costly one. I have the cold sweat on my back again every time I think of it. That's enough to make one 'rant and rave against them'.

Ja! How'd you know I was thinking of you? I've had a 550 for close to 30 years and have run inline filters the whole time without ever having a problem -- not even once. But of course to each his own!

[Deltarider]

Inline fuel filters are about $3-5.

All I know, inline filters on a CB500/550 (and maybe other models) is not a success. You don't want your bike to stutter unexpectedly whilst overtaking with uncoming traffic. Then a $3-5 filter can become a very costly one. I have the cold sweat on my back again every time I think of it. That's enough to make one 'rant and rave against them'.

Ja! How'd you know I was thinking of you? I've had a 550 for close to 30 years and have run inline filters the whole time without ever having a problem -- not even once. But of course to each his own!

The reason I am quite stubborn about this, is that often in the past I had the bike running correctly and then after weeks a dangerous hesistation reoccurred and had me scratching my head because by then I had completely forgotten about the filters. If you don't mind me asking, which remark, when new to a CB500/550, would you rather learn: your remark which is trivial at best or my serious warning that a possible dangerous situation can occur? 'Each to his own' doesn't seem the appropiate comment here and does not show much responsibility. 

[PeWe]

My CB750 has never been in need of an additional filter.
First 14 years with similar petcock (K6) with filter as here. Early petcock the last 5 years. The only problem was that I thought the petcock and carbs were jammed when it was a bad fuel cap, no air feed due to rust.

It might be different fuels. My bike has got fuel from several European countries without any issues. Other countries might have dirty fuel. Anyway, why double filters?
I vote for Honda petcock in good shape as first step. They are not that expensive. Get a stop on a remote road will cost more, maybe health and the entire bike.

I think the use of additional filter has been the solution on very old bikes with rusty tanks and no petcock filter.

[carnivorous chicken]

Inline fuel filters are about $3-5.

All I know, inline filters on a CB500/550 (and maybe other models) is not a success. You don't want your bike to stutter unexpectedly whilst overtaking with uncoming traffic. Then a $3-5 filter can become a very costly one. I have the cold sweat on my back again every time I think of it. That's enough to make one 'rant and rave against them'.

Ja! How'd you know I was thinking of you? I've had a 550 for close to 30 years and have run inline filters the whole time without ever having a problem -- not even once. But of course to each his own!

The reason I am quite stubborn about this, is that often in the past I had the bike running correctly and then after weeks a dangerous hesistation reoccurred and had me scratching my head because by then I had completely forgotten about the filters. If you don't mind me asking, which remark, when new to a CB500/550, would you rather learn: your remark which is trivial at best or my serious warning that a possible dangerous situation can occur? 'Each to his own' doesn't seem the appropiate comment here and does not show much responsibility.

Lighten up, buddy. You clearly got a bad filter or something and it's become somewhat of an obsession. Like I said, I've run filters in my CB550 for nearly 30 years. I ride that thing from Seattle to Portland and back holding 80-85 every year, never so much as a stutter. On the flip side, you got a bad filter (or it got clogged because it did its job), it caused "a dangerous hesistation" but thankfully you're still here to warn people off of inline filters for the rest of your life. While I am all about being safe, I think many people have run filters with no problem. I'm one, and I'm just pointing out it's an option for the OP.

[johans]

Man , i thought the people on the Formula 1 and Lotus boards were snarky ....    I don't think " to each is own " is such a bad statement .   Much better than someone recently calling somebody who uses Simple Green to clean a carb an " Idiot " .

I used SG in my HF  ultrasonic cleaner w/ a bath in Toluol and a little MMO afterwards with great results . I guess i'm an idiot also    ) .......


The real question here is why is the original poster called turtle sniffer 2 , and more importantly ... What happened to turtle sniffer 1 ?

[Deltarider]

I'm one, and I'm just pointing out it's an option for the OP.

May I suggest you have another look at what OP posted himself in his reply #12? And have you missed the bad experiences others than me reported? And if you wanna have an argument by all means, may I suggest the Argument Clinic?

[TwoTired]

...More like ignorant. (often confused with idiocy.)
The chemicals in simple green dissolve and convert the metal alloy of the carbs.
If the surface is coated to block the attack, no damage done.  Once that blocking surface is removed metal loss/ conversion occurs.  Then it is a matter of time, strength, and volume of the attacking agent to limit the severity of the metal loss.

Simple green is still a bad idea, as there is no consitent formula for success. (Exception, the aluminum safe variant of simple green not normally carried in household supply stores.)  The variables time, contaminant thickness, and solution strength vary from application to application.  "Success" as defined by one from casual observation does not guarantee damage hasn't occurred in an unobserved and possibly non-critical area.

The same concept is true for in- line filter application.  No one who has gotten away with using them has measured the head pressure difference with and without for all tank fuel levels. Science dictates the air bubbles in the gravity fuel line will fight in reverse of desired fuel flow.  A full tank has maximim fuel head pressure, a near empty tank has very low head pressure that a rising air bubble can negate resulting in fuel starvation (possibly while trying an overtake with oncoming traffic).  The observation that you never noticed early fuel starvation, only outlines your neglect to thoughly test your spurious and lazy modification.  It doesn't matter how many personal anecdotes are brought forward, science overrides human personal feelings. Ignore science and you ignore part of the world in which you live and have no control over.  Because one choses to ignore it, does not make it irrelevant.  It does make one ignorant.

[carnivorous chicken]

The real question here is why is the original poster called turtle sniffer 2 , and more importantly ... What happened to turtle sniffer 1 ?

Enquiring minds want to know!

[johans]

Gotta love people who rewrite history, i could of sworn that the poster called other members who use SG " idiots " . Must be my dyslexia kicking in .


 I remember when i use to skydive in the 80's , us newbies use to ask " who are all those guys in the trailer across the runway ? , oh, those are the "skygods " . Jumpers with 2-3 k jumps and they don't associate with us " . Great way to continue the sport .

People are here for info., not criticism imho ...

Ride Safely-

[jaytee-nz]

Well said Johans - the only thing that disappoints me about this forum is the continuing ego fighting between certain members who refuse to accept that possibly there are alternative answers / solutions other than their own cast in stone, immovable versions. If someone else has a different view, opinion, history, experience etc, then just accept that it's different. No need to attack them for daring to disagree with you. There's enough killing going on in this world because of that problem.
 

[TurtleSnifferII]

The real question here is why is the original poster called turtle sniffer 2 , and more importantly ... What happened to turtle sniffer 1 ?

TurtleSnifferI was my first username here and at cb650.com. I think I forgot my password for the account and my old email so I just made a new one. I figured II was better than I since I was moving up to a larger forum. The 650 site was pretty much dead a couple years ago. As for the why, I have no idea. A couple years was making an account for ST and thought of that when I was eating some eggs over-easy. Funny how can remember that but not something I did 10 minutes ago haha.

I had no idea that an inline filter would cause this much drama.  I remember checked and it had good flow when replaced but I also blew some tiny debris out of the petcock  yesterday with compressed air which the tank filter might have stopped. Overall it doesn't work in my case, the hose is pretty much flat and it rubs against the moving slide when you mess with the throttle. I appreciate the help and responses. I ended up getting another petcock to harvest from. 20w-50 anyone? 

[ekpent]

 Way back when dinosaurs roamed the earth and my wife and I got our first computer we joined E-bay. I could hardly type let alone figure out all the stuff back then. Of course the kids were experts and made us an E-bay user name called "chow-on-bunnies" for some ungodly reason. People were asking sometimes if we had a rabbit farm or other related questions and a few PITA types berated us. My friend still has his old original user first name from back then. If you read it slow you will get it. FARPHROMPUKIN 
  OK - back to the fuel filter-petcock-Simple Green wars !!

[jlh3rd]

Well said Johans - the only thing that disappoints me about this forum is the continuing ego fighting between certain members who refuse to accept that possibly there are alternative answers / solutions other than their own cast in stone, immovable versions. If someone else has a different view, opinion, history, experience etc, then just accept that it's different. No need to attack them for daring to disagree with you. There's enough killing going on in this world because of that problem.

it happens....I was told by a senior member on here to quit posting my "drivel" about a certain subject, implying I was completely wrong and basically to shut up, when in fact I am 100% correct and he was wrong. Then furthermore, when i defended myself ( and i do defend myself rather strongly) and published the facts, I was the one labeled the bad guy.......I'm fairly new on here so , of course, I was vilified by the cliques on here.