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Author Topic: Choke pickup tube o-ring  (Read 687 times)

Offline Fontain25

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Choke pickup tube o-ring
« on: August 02, 2019, 09:06:47 AM »
Why do the Dellorto VHB29 carbs need an o-ring on the choke pick-up tube or they run rich? My experience is mostly with Keihin and Mikuni carbs that don't use this o-ring and on them when the choke plunger is closed no fuel can get thru the choke circuit. What is the difference?
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Offline Wayne Orwig

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Re: Choke pickup tube o-ring
« Reply #1 on: August 02, 2019, 09:48:58 AM »
I've wondered about that too. I mean it is just stuck down there in the fuel. Why would it care if there is an o-ring on it, it will still pick up the same fuel.

 
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Offline Charles in Lake Charles

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Re: Choke pickup tube o-ring
« Reply #2 on: August 02, 2019, 09:54:16 AM »
I've been running my bikes for years without the o-ring. No carb problems!
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Online Antietam Classic Cycle

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Re: Choke pickup tube o-ring
« Reply #3 on: August 02, 2019, 09:54:33 AM »
The earliest VHBs had no o-ring there and didn't have issues with running rich.
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Charlie

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Re: Choke pickup tube o-ring
« Reply #3 on: August 02, 2019, 09:54:33 AM »
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