Petrol Tank Cap Seal

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dapper
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Minor thing but very annoying. When I fill up the tank, the rubber cap seal swells and I can't get it back under the two lugs. Once it dries out a bit it shrinks back to normal size. I think its due to the ethanol in modern fuel. Does anyhwhere do an ethanol resistant rubber seal?
Compact Toolbox Flywheel Holder
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HxPaul
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Main scooter: lambretta Li 150
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I've never seen an ethanol resistent cap seal.Your seal maybe has become porous.If I were you I would you I would just buy another and fit it.
hendy
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Mb sell viton cap seals. I tend to think they're overkill, but I've got two anyway!
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garry inglis
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torbay lambretta sells new cap £4 ethanol resistent they work a treat
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