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Vacuum damper for petcock / fuel taps

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Vacuum damper for petcock / fuel taps

PostAuthor: cliffa » Tue Mar 03, 2015 6:24 pm

Hi all,
For those of you still running vacuum taps, petcocks or whatever you want to call them (as I am)...

Just after I bought my TR1, I was about to head out for a ride and I noticed pretty extreme pulses in the fuel passing through the fuel pipes. I was sure that this was due to the un-damped vacuum from the intake manifolds to the fuel taps pulling the tap diaphragms in then releasing them. I was also sure this was not healthy for those rubber diaphragms. So I set about sourcing some dampers. Basically none were easily adaptable, so I put my thinking hat on and came up with the solution you can see here [url=http://s924.photobucket.com/user/apple-cor/media/Vacuum%20damper/P1010442_zpsrdoodebt.jpg.html?sort=4&o=0 I have been running these for a year with no adverse effects and though it about time to share the simple fix. I made another set for your enjoyment.

Hope you find it useful.

Cheers,

cliffa

cliffa
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Bike year & model: 81 XV1000 TR1
1957 Velocette Venom
Sex: Male


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