Another Leaking Petcock Question

mwriders
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Another Leaking Petcock Question

13 Sep 2011 13:23

Yep, the petcock on my KZ440B1 is leaking. This is a single hose vacuum unit (the non-functioning vacuum fitting is factory sealed). I rebuilt it with a standard kit last winter. The leak, (as near as I can tell from touch, sight and staining) appears to be at the connection to the tank. Now, I cleaned the tank and have a new 'O' ring from the kit. So, either the fitment to the tank is bad (pitted tank, maybe)or it is leaking around the bolts. I'm looking for an easy fix here. A chemical solution would be really nice (e.g. fast). Can I wrap the bolt threads in something? Use a sealant along with the 'O' ring?

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone

1966 Honda CB160 (gone, damn it)
1965 Suzuki 80

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Patton
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Re: Another Leaking Petcock Question

13 Sep 2011 13:37

#476385

mwriders wrote: Yep, the petcock on my KZ440B1 is leaking. This is a single hose vacuum unit (the non-functioning vacuum fitting is factory sealed). I rebuilt it with a standard kit last winter. The leak, (as near as I can tell from touch, sight and staining) appears to be at the connection to the tank. Now, I cleaned the tank and have a new 'O' ring from the kit. So, either the fitment to the tank is bad (pitted tank, maybe)or it is leaking around the bolts. I'm looking for an easy fix here. A chemical solution would be really nice (e.g. fast). Can I wrap the bolt threads in something? Use a sealant along with the 'O' ring?

single hose vacuum unit (the non-functioning vacuum fitting is factory sealed) --- :huh:

1973 Z1
KZ900 LTD

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mwriders
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Re: Another Leaking Petcock Question

13 Sep 2011 13:51

#476388

Some 440's run two lines from the petcock, some run a single fuel line to an spigot located between the carbs. This one is the latter. They apparently use the same petcock, and just seal off the unused spigot at the petcock.

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone

1966 Honda CB160 (gone, damn it)
1965 Suzuki 80

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Patton
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Re: Another Leaking Petcock Question

13 Sep 2011 14:25

#476397

Some ideas here ---

Click > www.arboristsite.com/chainsaw/133284.htm

Good Fortune!

1973 Z1
KZ900 LTD

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Patton
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Re: Another Leaking Petcock Question

13 Sep 2011 14:27 - 13 Sep 2011 14:28

#476398

More ---

continuouswave.com/ubb/Forum3/HTML/005909.html

1973 Z1
KZ900 LTD

Last edit: 13 Sep 2011 14:28 by Patton.

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mwriders
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Re: Another Leaking Petcock Question

13 Sep 2011 14:32

#476402

Cool. That stuff ought to work in this application. Thanks!

1980 Kawasaki KZ440B (brand new eBaby)
1998 Ducati 900S (gone)
1978 BMW R100S (gone, damn it)
1975 Yamaha RD350 cafe (gone)
1986 Yamaha XJ650 Seca (gone)
1981 Kawasaki KZ440LTD (gone)
1969 HD Sportster (gone

1966 Honda CB160 (gone, damn it)
1965 Suzuki 80

Please Log in or Create an account to join the conversation.