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Petcock Lever O-Ring

08 Apr 2020 05:08 08 Apr 2020 05:09 by Silo7.
Silo7
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Petcock Lever O-Ring #1
Does anyone know the size of the petcock lever o-ring? Also, is the size part of the part#? I know how to get bolt sizes but don’t want to assume on the o-ring. Also, seems to be quite fussy on the exact size or leaks occur. The forum does have a part number breakdown but this didn’t help me. #214-24513-00-00, 74,75,76 DT 175,250’s.

Thank you

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08 Apr 2020 10:35
Mothersbaugh
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Petcock Lever O-Ring #2
What bike are you asking about? Some of the petcocks have an O-ring in the lever in addition to the O-ring between the tank and the lever; which O-ring are you wanting to know about?

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08 Apr 2020 11:04
Silo7
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Petcock Lever O-Ring #3
All of my bikes use the same part# 214-24513-00-00, it is the only o-ring used on these with the exception of the “formed” seal used to mount to tank. It is located on the lever casting itself, not the body. It is part #30, attaching to #31 in pic attached.

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08 Apr 2020 11:16
Mothersbaugh
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Petcock Lever O-Ring #4
Got it. Thanks. I have a lot of the badge bikes which don't use that O-ring, which was why I was asking.
I suggest you PM DEET or Enduronut and ask them. They seem to know a great deal about sizes and substitute parts. One of them might even have an NOS part; I know they both stock a lot of "unobtainium" parts...

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08 Apr 2020 14:44
RT325
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Petcock Lever O-Ring #5
29 is the start of any fuel leak past the lever whether dripping on the floor or not shutting off into the carb [although if float valve is working then that doesn't matter so much]. But out past the lever then replace 29 & the Oring. sometimes you can sort of get a second life out of 29 by flipping it over but not the best plan in the longterm.
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08 Apr 2020 21:09
Silo7
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Petcock Lever O-Ring #6
Your correct, 29 in hand and wavy washer to ensure contact. Just wanting to document actual size of the o-ring for future builds. The NOS are expensive and elusive, want an inventory of these to prevent cost and delays. Thanks for the comment, it is for sure a true statement.
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08 Apr 2020 21:44
Rick C.
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Petcock Lever O-Ring #7
I always replace #29, #32, #35, and #38. always if you are there.
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09 Apr 2020 08:10
yamahoper
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Petcock Lever O-Ring #8
I have tried to replace the internal parts with standard -metric and sae orings. I tried oem parts from speed n sport. I have tried repair kits from e-bay. All with limited success. I gave up and started buying complete petcocks, some cheap some expensive (oem Yamaha). I removed an o ring from a 1975 DT250 petcock It measured (all in M.M.) ID 24.5 OD 27.5 CS 1.5 The part number is 214-24513-00-00. The ID could be the first three of the second group. My measured o ring might be swollen from 1.3 to 1.5 . and could be the last two ? None of the JASO charts (japanese auto standards organization) I looked at had that size listed. Alot of o rings in my bussness are propietary (plumbing) and only available from the manufacture. I evan tried one of those in a petcock. So good luck.
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