View Full Version : Fuel cock is leaking. Repairable?
The fuel cock on my GZ is leaking while the engine is running. It's about a drop every 15-20 seconds. It doesn't leak if the engine is off, even in the prime position.
I haven't found a repair kit for it yet. I've repaired them on other bikes, but it was a while ago. I may have to just take it apart and take a look, but I just filled the tank. :roll:
Has anyone else repaired them?
blaine
10-21-2011, 01:20 AM
The fuel cock on my GZ is leaking while the engine is running. It's about a drop every 15-20 seconds. It doesn't leak if the engine is off, even in the prime position.
I haven't found a repair kit for it yet. I've repaired them on other bikes, but it was a while ago. I may have to just take it apart and take a look, but I just filled the tank. :roll:
Has anyone else repaired them?
In my experience,it is usually dirt that is making it leak.I took it apart and cleaned it and no more problem.
:) :cool:
Thanks for the info. I'm draining the tank now to take a look.
Well, I took it apart and cleaned it. One of the gaskets (the one that looks like a smiley face) was a bit chewed up so I flipped it over. The diaphragm/gasket on the back side looked ok, but frail, so I didn't mess with it much. That was probably a mistake, because it still leaks after I put it back together. :cry:
It's leaking from the hole in the bottom of the plastic piece between the 2 diaphragms. That means the first diaphragm must have a hole in it. :curse: :cuss:
jonathan180iq
10-21-2011, 09:19 AM
Replacement petcocks are cheap enough.
http://www.ronayers.com/Fiche/TypeID/26 ... FUEL_COCK_ (http://www.ronayers.com/Fiche/TypeID/26/Type/Motorcycle/MakeID/2/Make/Suzuki/YearID/47/Year/2006/ModelID/7858/Model/GZ250/GroupID/373514/Group/FUEL_COCK_)
Or, you could just get some epoxy or QuickSteel and seal the leak. QuickSteel is impervious to gas and many other corrosive chemicals.
Gz Rider
10-21-2011, 10:03 AM
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It doesn't look like anything has flaked off, but I'm sure I'll find out. I'll probably take the carb apart and clean it after this anyway. It's been about 5 years and 15,000 miles since it's been looked at.
For now I tried a seal-all gas resistant sealant repair. 5 bucks and 2 hours of my time. I'll let everyone know how it works.
I still wish I could find a gasket/diaphragm kit for it.:)
Gz Rider
10-23-2011, 10:55 AM
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Well the repair route didn't work long at all. It started leaking again.
I pulled and plugged the vacuum line to the petcock, and ride with it on prime. It's not leaking that way and will work until I get a new one. It just bugs me to replace the whole thing (for $80 +), when the only things it needs are the rubber parts.
Gz Rider
10-27-2011, 03:39 PM
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music man
11-22-2011, 09:13 AM
I just went through this on mine, they don't sell parts for it, at least I haven't found any in an extensive search. But on a good note, when I bought a new petcock, it fixed the leak right up.
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