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Fuel cock leaking 25 Aug 2014 09:48 #645076

  • insutama
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Im still trying to figure out where my petcock is leaking i think were the fuel line hooks up to the petcock that steel part keeps popping out of the fuelcock is this normal ? the part that the hose clamps to and it can pivot kinda hard to explain i would take a picture but it wont let me upload on this webpage for some reason
1978 kz650

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Fuel cock leaking 25 Aug 2014 09:58 #645077

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it says
Fatal Error was detected!

Please contact the site owner.

when i try and upload pics
1978 kz650

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Fuel cock leaking 25 Aug 2014 10:16 #645080

  • pete greek1
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I had the same problem on a 78 KZ 650 many years ago, I pulled the nipple out & cleaned it well, same with the surface on the petcock around where the nipple goes, making sure there was no fuel or oily stuff on either part (nipple & petcock),I then inserted the nipple into the petcock as far as I could & at the proper angle for the fuel line, I then mixed a small amount of J B Weld & put it around the area where the nipple is inserted into the petcock, let it dry a day or two, & it never leaked or came out again
maybe someone will chime in with a better fix, but this method fixed my problem
Pete
1980 LTD 1000..,1976 LTD 900, have the 1000&900 now. the rest are previous= 1978 KZ 650 B.., 1980 Yamaha XT 500..,1978 Yamaha DT 400.., 1977 Yamaha yz 80..,Honda trail ct 70.., Honda QA 50...5-1/2 hp brigs & straton CAT chopper mini bike...3-1/2 hp mini bike (WHEN GAS WAS ABOUT 45 CENTS A GALLON)!!!!
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Fuel cock leaking 25 Aug 2014 10:29 #645083

  • martin_csr
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The brass fuel nipple on my bike came out -- I re-installed it by applying Permatex liquid metal to the outside of the nipple, then pushed it back in place. That was several years ago --- no leaks. I also used the stuff to repair a leaky low fuel switch.

A good alternate product would be Seal-All --- I think the Home Deport carries it.
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Last edit: by martin_csr.

Fuel cock leaking 25 Aug 2014 19:23 #645147

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Thanks for the replys mines not brass tho but ill definitly try jb weld after i use all this gas in the tank up im so sick of fuel leaking in my garage right now i have zapstraps holding it in super tight seems to be working
1978 kz650

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Fuel cock leaking 25 Aug 2014 20:22 #645159

  • 650ed
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Your pics may be too large and causing that error message. You can use Paint to resize them smaller. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Fuel cock leaking 26 Aug 2014 04:58 #645182

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JB Weld will probably do the job, but I think it's a 2-part epoxy, so you have to do some mixing --- no mixing with the liquid metal or Seal-All. click! . :)

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Last edit: by martin_csr.
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