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Author Topic: Float settings  (Read 320 times)

Offline pinski1015

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Float settings
« on: May 23, 2017, 06:23:16 PM »
Having trouble setting the floats on my newly rebuilt carb. Tried bending the tab different dirwctions but can't get it where it needs to be.

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Offline Oldmanracing

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Re: Float settings
« Reply #1 on: May 23, 2017, 09:25:00 PM »
Step 6 - DS Float Maintenance and Pilot Cleaning

1- If you have inconsistent main jet setting, float height adjustment may be the problem. If you find your jetting always rich, that is, after a trail ride the plug looks gas soaked, and black is the color on end of plug and porcelain is dark brown; adjustment to the float is required.
I feel that the factory spec is a little on the rich side. The spec is 10mm(.394).
Trying to bend the tab and hit this dimension is like hitting a moving target.
I have found more consistent results using this procedure:
With float bowl cover removed, turn carb upside down.
Note that the floats are formed with a crowned end surface. How can you take a measurement off a surface that is not flat - You can?t.
But there is a edge just below this crown that is straight.
I take a first measurement to this edge, at the pinned end. Write down reading
I take a second reading to this edge, at the unpinned end. Write down reading.
Subtract second reading from first reading.
My Spec: 0 to 5/64(.080) That is - The second reading should be equal to first reading or lower to as much as 5/64(.08).

Offline pinski1015

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Re: Float settings
« Reply #2 on: May 24, 2017, 03:26:02 PM »
My problem is more to do with bending the tab. That seems to make no difference in how the floats sit in the bowl.

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Offline Oldmanracing

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Re: Float settings
« Reply #3 on: May 24, 2017, 07:34:38 PM »
I have always used a straight pick to lightly bend the tab that pushes the plunger into the fuel seat.
Remember measurements are taken withe the carb upside down.

 

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