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keihin 38pwk question with pics

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I have a fuel overflow issue im trying to resolve. With the fuel open my bowl fills and starts to overflow. My question is with the float needle, How does it work? The needle has a rubber pointed tip and on the opposite side a plunger. What stops the fuel from flowing the rubber pointed tip or the plunger? In the attached picture I will point at what I call the plunger.

Edited by tapanrack

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NO PIC

 

The rubber tip sits in a brass seat. 

The spring loaded plunger keeps pressure on the tip-to-seat seal.

Usually, the cavity that the plunger (called a float needle) is corroded, along with the float needle, and they stick together, not allowing free movement.

You remove the float needle, polish it up, polish the cavity and the seat, and that is usually all it takes.

If the float needle tip has a groove in it, then you need to replace it.

 

float.gif

Edited by Krannie

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thank you Krannie

 

The rubber tip is in great shape and the plunger moves freeley. My problem is getting the adjustment just right. I made an adjustment today and no spilling but the bowl seemed to run out of gas. I ran out of daylight so ill try again tomorrow. I appreciate you reply..

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What adjustment do you mean?

There is only one adjustment, and that is the float level.

It must be to factory specs to work.

It will be listed in your service manual.

You adjust by bending the tang the needle pushes against.

 

 

the tang adjustment..I'll check the specs.

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