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Creating a reserve in fuel tank

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Hi,
I hope someone may have the easy answer to the problem I am trying to solve.
I hate the phrase "back in the day "
But, back in the day, when we had proper petrol
I seem to remember a small length of rubber tube slipped over the main fuel tap to form a "weir" which created a small reserve, enough to get you to the next garage.
I am in the process of fitting a new tank and taps to my commando, and both main and reserve taps come without any tube.
Every piece of ethanol resistant tube that I have managed to beg steal or borrow, including copper tube that fits over the internal filter is too thick to go through the holes in the tank where the taps screw into.
Any tips would be appreciated,
Or is it just a case that there is now no such thing as a reserve on the Commando.

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Have a close look at your new main tap, It should have the stand pipe within the filter itself. The reserve tap has no stand pipe. You could fit a sleeve of thin wall brass over the filter or if your careful, roll and soldered a sleeve out of tin plate to do the job 

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... the tunnel in the tank won't let all the petrol out through either tap so if you only use one side for "normal" the other will give you a small reserve. But Peter is of course correct.

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I'm with Peter on this for a neat job, but I've used heat shrink with good effect too. Though I'm no expert and could have just been lucky.

I don't know if there are different types regarding to ethanol/petrol resistance, so try soaking a piece before you give it a go.

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I have now checked the main tap properly, and there is indeed a sleeve inside of the gauze mesh which should do the job.
Thanks again

Geoff

 



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