Use your petcock! - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 31 (permalink) Old 07-27-2014, 05:55 PM Thread Starter
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Use your petcock!

I seem to be learning things the hard way. Forgot to shut off my petcock on friday...came out today and saw gas all over the ground. One of my spark plug wires was physically up against the petcock and is now inflated and soaked in fuel.

Well i needed to replace the wires anyway. Time to get it done i guess....

,mike
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post #2 of 31 (permalink) Old 07-27-2014, 06:32 PM
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Is this an OEM petcock?
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post #3 of 31 (permalink) Old 07-27-2014, 06:39 PM Thread Starter
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Yes. I just rebuilt it 2 weeks ago w/ a kit.
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post #4 of 31 (permalink) Old 07-27-2014, 06:49 PM Thread Starter
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Now i'm trying to find where to buy 10mm wire for new ones.
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post #5 of 31 (permalink) Old 07-27-2014, 06:52 PM
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Quote:
Originally Posted by mcharles13 View Post
Yes. I just rebuilt it 2 weeks ago w/ a kit.
Oem should have shut off, right?
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post #6 of 31 (permalink) Old 07-27-2014, 07:00 PM Thread Starter
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Should have but in florida it gets crazy hot and i've been told the pressure can build up enough to make it leak. idk how accurate this is but it seemed feasible considering the past 2 days have been horribly hot and my bike was out in the sun.
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post #7 of 31 (permalink) Old 07-27-2014, 07:12 PM
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Quote:
Originally Posted by mcharles13 View Post
Should have but in florida it gets crazy hot and i've been told the pressure can build up enough to make it leak. idk how accurate this is but it seemed feasible considering the past 2 days have been horribly hot and my bike was out in the sun.
I do not think I can buy that. Perhaps other Florida members or Ceal (the resident expert on grande calliente) can chime in.

What I do know from experience, the OEM petcock is completely open before 2 inches of vacuum. I personally tested mine. If any part of the diaphragm 'nipple' or its bore isn't smooth, you could have a dangerous situation. The diaphragm, spring and o ring need to be in good shape.

HTH,

edit-I have never turned mine off.

Last edited by wmsonta; 07-27-2014 at 07:15 PM.
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post #8 of 31 (permalink) Old 07-27-2014, 07:34 PM Thread Starter
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idk then...i've had so many things go wrong w/ this bike i'm starting to wonder if it was even worth it in the beginning.
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post #9 of 31 (permalink) Old 07-27-2014, 07:56 PM
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It matters what year you own. Early models only had ON/RES/ PRI (for "prime" where gas would flow without vacuum)

Later models were OFF/ON/RES.

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post #10 of 31 (permalink) Old 07-27-2014, 08:31 PM Thread Starter
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Mine is a 2006. It does have an off but i forgot to turn it off.
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