Why does old gasoline turn gummy


 old fuel, Ignitability?


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Member since: 11/02/2013

This summer I brought my swallow to life with 4 year old fuel with the third kick. The swallow stood in an unheated shed all the years and was kicked off in the garden for a few minutes once a year. On the first trip in years she drove normally with the old stuff.

I didn't shake her either; my knowledge of chemistry tells me that the mixture cannot separate. It seems important to me that you let the carburetor run empty before switching it off and that it is dry.

So I think that if everything else is okay, it should also work with old gas.

Depending on how the bike was "stored", I would check the tank for rust (also at the bottom, because if there was some water there it will have rusted properly), clean the carburetor and check for corroded electrical contacts if necessary.
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