Effect of specific Gravity of fuel on Solex 40 PII-4 rich ?

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Alex Goodhart
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Effect of specific Gravity of fuel on Solex 40 PII-4 rich ?

#1 Post by Alex Goodhart » Sat Sep 15, 2018 10:48 pm

If a denser
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Alex Goodhart
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Re: Effect

#2 Post by Alex Goodhart » Sun Sep 16, 2018 1:32 am

Can anyone
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Olivier AUVRAY
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Re: Effect of specific Gravity of fuel on Solex 40 PII-4 ric

#3 Post by Olivier AUVRAY » Sun Sep 16, 2018 11:01 am

The fuel level has one effect on the fuel metering: higher = richer / lower = leaner. Usually, the fuel level is near the first hole on the emulsion tube.
But, as your fuel level is adjustable, you must check it and adjust it; by this way you will reach the factory specs.

As a carburetor is working with vacuum, if your fuel is "lighter", it must be easier to pump.......... and the air fuel ratio must be a little bit offset. But, I feel that the difference is near zero.

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