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TOPIC: Petcock repair

Petcock repair 29 Jun 2020 15:02 #829367

  • TheFlyingFreemole
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I was thinking my petcock was toast as I couldn’t blow air through at any position. So I disassembled it and was able to get a small drill bit down the fuel intake holes and push some funk out. Did a quick clean and put it back together. It is currently functioning properly for the on/off/reserve settings.

Mine is the LTD B1 (77 1000) style with two intakes for gas, non vacuum. There are aftermarket units available, but I’d like to keep original where original is possible.

The problem I have is that the small mesh/screen cap fuel filter doesn’t have anywhere to sit on the reserve side, and the main stem has a crack in it.

Anyone know of a replacement for the stem pieces? Or has anyone come up with around to making their own pieces?

1977 KZ1000 LTD B1 (under construction)
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Petcock repair 29 Jun 2020 16:00 #829385

  • Scirocco
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Clean the brass tube surface to bare metal and solder the crack with tin.
Don´t waste your time to seach for an new filter mesh, i use some small in-line filter to the carbs fuel line and a small Neodym magnet in the lower petcock filter cup to catch some rusty particels.
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Petcock repair 29 Jun 2020 21:18 #829409

  • ckahleer
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you could get a cheap petcock and use the filters and maybe the brass tube. $5.29
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Last edit: by ckahleer.

Petcock repair 29 Jun 2020 21:26 #829410

  • gd4now
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I have not had to repair petcock tubes, but have repaired the overflow tubes in carb bowls with solder much as scirocco suggested.
1977 KZ650 B1
Pods and Denco header


This is my Z

OLD KAW OWNERS SMILE ALOT

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Petcock repair 30 Jun 2020 14:50 #829458

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I've either replace the tube or replace the petcock. Soldering for something like that sucks. Learned the hard way wasting my time soldering float bowl overflow tubes. Replacing them was much easier and was a more sano repair.
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Petcock repair 30 Jun 2020 15:35 #829461

  • TheFlyingFreemole
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I got the part cleaned up pretty well yesterday.

Was putting an order together on z1Ent for some gaskets and such, and out of nowhere saw a replacement filter, but it was 5$ a piece, so it would actually be cheaper to cannibalize a cheaper petcock version for the pieces. As of now I'm leaning on replacing the whole stem, or possibly "painting" the current stem with a little JB Weld if I find one that won't interact with the gas/ethanol.
1977 KZ1000 LTD B1 (under construction)

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