kz650 petcock leak

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09 Jun 2008 18:46 #219039 by brianpclarke
kz650 petcock leak was created by brianpclarke
hey guys,
hoping someone could help me out with this .... basically I have a 1979 kz650 with pods.... everything pretty much stock. But a couple of weeks ago my petcock started leaking out of one of the pods.... the weird thing i guess is that when on its side stand it leaks out of #4 carb... which is the highest above ground. Anyhow I bought a diaphram repair kit and basically did nothing, if not make it worse (which i noted in past forums). I changed all my fuel lines and have taken the damn thing apart around 10 times.... but still just cannot get it.
Also my bike will not start even though the petcock is generally feeding the bike as well as my garage floor with gas.... I blame this on flooding but...
I am kinda lost here....
Maybe someone has a some advice and I was wondering if I am going in a wrong direction...such as accelerator pump or the float needles...
Any help will be appreciated.

Thanks
Brian

-Brian
1977 KZ650C
1976 Kz900 LTD

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09 Jun 2008 19:06 #219042 by Patton
Replied by Patton on topic kz650 petcock leak
brianpclarke wrote:

...leaking out of one of the pods...petcock is generally feeding the bike as well as my garage floor with gas....


Besides the faulty petcock, the floatbowl overflow may be blocked or being overrun by excess fuel getting past the float needle (for whatever reason, but often due to grit or crud in the seat orifice).

Would sniff-test crankcase oil for possible fuel contamination.

Good Luck! :)

1973 Z1
KZ900 LTD

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09 Jun 2008 19:51 #219053 by brianpclarke
Replied by brianpclarke on topic kz650 petcock leak
nevermind.... i am an idiot.... amazing what a glass of whiskey and some patience can achieve.

-Brian
1977 KZ650C
1976 Kz900 LTD

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10 Jun 2008 03:42 #219082 by HerrDeacon
Replied by HerrDeacon on topic kz650 petcock leak
brianpclarke wrote:

nevermind.... i am an idiot.... amazing what a glass of whiskey and some patience can achieve.


So did you fix it brian? If so, can you say how? I'm having a similar issue and would like to know your resolution.

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10 Jun 2008 15:22 #219193 by mtkawboy
Replied by mtkawboy on topic kz650 petcock leak
He patiently drank the whiskey until it didnt bother him any more I guess

78-KZ1000/1105, 80 KZ1000, 82 Kawasaki GPZ750, 95 Harley Fatboy, 80 Suzuki GS1100ET, 81 GS1100E parts bike, 83 GS1100SD Katana/1394,78 Yamaha XT500, 81 Yamaha XS650, 78 Yamaha XS650E, 48 Whizzer model J motorbike, 71 Honda CT70H, 71 Honda CT70, 81 IT 250 Yamaha,82 Honda XL100S owned

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10 Jun 2008 15:44 #219200 by PFC FNG
Replied by PFC FNG on topic kz650 petcock leak
Poured whiskey into the carbs instead of starter fuid?

I know it would not be any fun if it was easy, but does it have to be this much fun?
84 ZX750 GPZ (Waiting for paint)
Eastpoint, Mi

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11 Jun 2008 15:41 - 11 Jun 2008 15:43 #219414 by brianpclarke
Replied by brianpclarke on topic kz650 petcock leak
Yeah, I fixed it.... I ordered the new diaphram and put it in but had it a little backwards at first. I also found that the spring on the back of the diaphram had lost its original "spring" so changed that one out and seems to be working like a champ....
Still need to get to those floats in the carb one day though.... changed the fuel lines on the bowls to clear ones and can see them getting filled up rather easily... maybe it has lost buoyancy or just needs to be set...

-Brian
1977 KZ650C
1976 Kz900 LTD
Last edit: 11 Jun 2008 15:43 by brianpclarke.

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11 Jun 2008 17:50 #219442 by HerrDeacon
Replied by HerrDeacon on topic kz650 petcock leak
Excellent, thanks for updating the post. I have to take a look at mine this weekend and your experience will help.

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