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Legacy Bike
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Hi all. It looks like my petcock has given up and it's leaking from the handle and it's not stopping the gas flow completely. It did sit for a while and was not used so I'm not shocked. If I recall correctly this is a Karcoma dual out let tap and not the original type for a 67 r50. I think the everbest is correct but was more prone to leak? Before I order the wrong thing can someone confirm the part as well as any o rings i might need and perhaps direct me to a good source to buy it? I don't mind buying a whole unit as opposed to trying to rebuild Thanks for the help.

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schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
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Any dealer can get you the

Any dealer can get you the parts for a standard Karcoma rebuild. I'm sure Vech has the parts...could try BMW Hucky, too.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Legacy Bike
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I was going to call Vech. I

I was going to call Vech. I just wasn't sure if these type were wise to rebuild.

miller6997
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New Everbest available

I've read about new Everbest petcocks that don't leak, or so it is claimed. I have no personal experience with them. I agre that the Karcoma is straightforward to rebuild.

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Jon Miller
'67 R69S
'13 F800GT

312Icarus
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Your's is a Karcoma.

Your's is a Karcoma. Rebuilding them is as easy as falling off a log. Vech has a kit. Take it off, clean it up, install new seals and put it back together. Takes a few minutes, and a new one isn't cheap.

The original Everbests were not rebuildable iirc.

Icarus

Beemer54
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Bob Porecha in London sells

Bob Porecha in London sells new Everbests which don't leak.

FWIW Everbests can be rebuilt. I've rebuilt several without problems. Cycleworks used to stock a 'kit' but it's a very expensive way of buying a bit of 1/8" cork

San Arthur
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San Antonio, TX
Joined: 04/22/2007
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Boiling water

I follow a post advice and submerged mine in boiling water, and left it there for some time.
The cork or seal rehydrated and stopped the leaks. If the cork is broken this obviously wont work. The post suggested not to take the cork off the petcock, they are fragile when dry. The search option in the top left corner of this page rocks!

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San Arthur in San Antonio, Texas
'58 R26 '76 R90S '94 R100GS/PD

Legacy Bike
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Yes thank you. I searched up

Yes thank you. I searched up some previous posts but wanted to see if there was any new information or product that might suit my needs.
I will try the boiling water trick for the heck of it. But, this petcock is pretty old and might need some attention! (Like most of us:)

spider rust
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Pet cock

Have one new I'll sell.

robgernstetter
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i bought the new Everbest on

i bought the new Everbest on ebay and it works great but more importantly is a great repro of the original. $84. its been on the bike for a few months, no leaks, very well made with modern o rings

Legacy Bike
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All set

Thank you for the offer Spider Rust. I decided to take a chance and I picked up an Everbest on Ebay the other day like Rob did. Good to hear Rob that it has held up so far. Perhaps a silly question but I think it comes with one red and one black o ring. The ebay seller was not sure why and I think he indicated he uses just the red. Is that what you did?
Thanks again to everyone for the advice and information.

robgernstetter
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VBMWMO #9177
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I remember using all of the o

I remember using all of the o rings..

Legacy Bike
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I am having a strange issue

I am having a strange issue with the "new" petcock. The handle has become extremely difficult to move from position to position. I assume something is swelled inside or there is a more serious defect. Anyway, if anyone has any advice I appreciate it ....also since I am going to pull it off again, now might be a good time to add some fuel filters. I picked up a set of those mini filters but has there been any issues with fuel flow I should be thinking about if I use them? Also, do I need clamps (I realize there are none on the carb to fuel line connection)
Thanks everyone.

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
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Do you have a picture of the

Do you have a picture of the petcock? Where did you get it?

People are on both sides of the fence regarding the filters. Personally, I don't believe they cut down fuel flow unless of course you have a bunch of crud in the tank and it shows in the filter. I like to see the quality of the fuel flowing as well as to know when the bowls have been fill up so I can hit the ticklers.

No clamps are needed provided you're using the correct fuel line. I like to use the cloth braided line which is what came on the bike. Anything else might not fit well and thus you'll need a clamp.

I've never really had issues pulling old fuel line off of the petcock stubs. I've heard that some use an appropriate size washer in between the fuel line and the petcock body...slip it over the stub. It needs to be just wide enough so you can get your fingers on it to help push off the fuel line. Probably wouldn't even notice it was there.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

312Icarus
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I use yellow fuel line like

I use yellow fuel line like that for chainsaws etc. Clear enough so you can see the fuel flow as you tickle the carbs. I also have a little disposable fuel filter on each fuel line, as my tank is...old.

Instead of clamps, i clamp them with simple wire ties. Works great.

Icarus

ReDevil.1967_R50_2
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Hello fellas, not trying to

Hello fellas, not trying to derail the main topic, I am a novice owner and the info is very helpful. I was curious if I still have a original fuel tap what kind of rebuild kit should I look for?

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New to the Vintage BMW Motorcycle trade. Looking to network and learn how to keep theses beauties running.
Ike in New London, CT
'67 R50/2

schrader7032
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VBMWMO #7032
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ReDevil -- would need to see

ReDevil -- would need to see some pictures to know more.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

ReDevil.1967_R50_2
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Hell yeah ok! Ill have some

Hell yeah ok! Ill have some pictures later tonight when I get out of work. Thank you!

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New to the Vintage BMW Motorcycle trade. Looking to network and learn how to keep theses beauties running.
Ike in New London, CT
'67 R50/2

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