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Old 09-17-2007, 06:08 PM   #1
Ligito OP
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DR650 Fuel Cock repair

Are there any aftermarket parts to repair a leaky petcock on A DR650?
I just replaced the upper gasket and washers on the attaching bolts, while I had it apart for a valve adjust.
It looks like it may be leaking around the valve handle.
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Old 09-17-2007, 08:07 PM   #2
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is it a diaphram style carb
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Old 09-17-2007, 10:21 PM   #3
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Quote:
Originally Posted by Ligito
Are there any aftermarket parts to repair a leaky petcock on A DR650?
I just replaced the upper gasket and washers on the attaching bolts, while I had it apart for a valve adjust.
It looks like it may be leaking around the valve handle.

Suzuki doesn't offer a rebuild kit, only a whole new petcock. I guess I could have taken the damn thing apart to see if I could replace an o-ring or gasket or what ever, but I didn't want to fuss with it. I also could have replaced it with a Pingel, but I'm so used to vacuum petcocks I ended up getting another stock one. Babbit's had one for around $55 plus shipping, IIRC.
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Old 09-17-2007, 11:33 PM   #4
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I've taken others apart and they are usually very simple and new o-rings usually do the trick.
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Old 09-18-2007, 12:00 AM   #5
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I've taken them apart and use a small file on the mateing gasket surface. They're pretty warped. Will seal better. Hope this helps.
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Old 09-18-2007, 05:03 AM   #6
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I replaced the leaking stock vacuum petcock on my DR350 with a non-vacuum one from a '99 Yamaha WR400. Cost only $16 from RonAyers.com.

I believe it will work on the DR650 too, but I am not sure.
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Old 04-18-2015, 07:17 AM   #7
Soldier311
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I'm resurrecting this thread from the dead

I put a rebuild kit in my petcock and it appeared to work (that is, no spill gas out of the fuel line as I was installing it). I went to remove my tank today in order to to some wire routing and the damned fuel line flows a steady stream of fuel. WTF, over!
I can't imagine I put the sumbitch back together incorrectly, as the parts will pretty much only fit one way. And yes, I did put the spring back in it. I took it apart and nothing looks amiss. Should I stretch the spring out a little in order to put more pressure on the diaphram or something?
Any ideas? Other than installing a Raptor petcock?
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Old 04-18-2015, 07:22 AM   #8
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Quote:
Originally Posted by snare View Post
I replaced the leaking stock vacuum petcock on my DR350 with a non-vacuum one from a '99 Yamaha WR400. Cost only $16 from RonAyers.com.

I believe it will work on the DR650 too, but I am not sure.
This is the approach I've taken on all my bikes that go off-road, get rid of the vacuum operated original and replace with a manual petcock. I do this before the original even has a problem because I've seen odd failures of the vacuum operated petcocks. Simplify simplify.... the vacuum petcocks are just dummy-proof versions for people who can't remember to turn off the fuel when they park the bike anyway....
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