Author Topic: How a petcock is supposed to function?  (Read 10714 times)

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Offline stinkfinger

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Re: How a petcock is supposed to function?
« Reply #25 on: November 21, 2011, 02:50:52 PM »
Questions for you guys.  My bike seems to run good when I have a half tank or more.  Once I get down below half tank it cuts out at anything above 5K and if on reserve it won't really rev past 3K.  Fill it back up and problem goes away. 

The flow from on to res is dramatically different.  RES is a slow dribble and on is a steady stream.

I check the rubber gasket and it has the half circle opening but could that be my problem where it's just not filling the bowls as fast as the engine is using the fueL??

Also, check your tank vent. As gas is used, the emty space must
be replaced with air or theres a vaccuum(restricted flow)

Tony
Dualsports are an all access
back-stage pass to nature.

Offline stereosilence

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Re: How a petcock is supposed to function?
« Reply #26 on: November 21, 2011, 03:10:09 PM »
Ok you guys. Stop playing with your petcocks and get back to work!

Offline Stev-o

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Re: How a petcock is supposed to function?
« Reply #27 on: November 21, 2011, 03:51:55 PM »

I always feel like I am starting an X-Wing fighter when I start it up: Clutch Neutral? check. Fuel on? Check. Choke on? Check. Ignition switch to run? Check. Key on? Check. R2 Unit secure? Check.
Ready for primary ignition... Roger.
Kick Kick... VROOM!
Don't Forget:

Fighter helmet on...check.
Eye protections on..check.
Gloves..................check.

Blast off!!!
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Ernest T

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Re: How a petcock is supposed to function?
« Reply #28 on: November 21, 2011, 07:42:32 PM »
In Oz, we've always called it a Fuel Tap. "Pet Cock" always makes me giggle........ ;D

Then the term "ballcock" must break you up!

Offline Duanob

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Re: How a petcock is supposed to function?
« Reply #29 on: November 23, 2011, 11:26:00 AM »
Yes we've all been there at least once. It takes a while to learn how to use a petcock.
"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
2007 Moto Guzzi Breva 750ie
2015 BMW F700GS
Another 1976 CB550K Cafe?

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