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Author Topic: Best tips on ensuring your carbs don't leak after a rebuild?  (Read 433 times)

Offline Tim

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Re: Best tips on ensuring your carbs don't leak after a rebuild?
« Reply #10 on: Mar 29, 2018, 08:56:04 »
When comparing jets and needles, confirm the numbers on them are the same as well.  Your old parts may have been changed at some point to modify the fuel delivery, or the rebuild kit might be for a slightly different specification.

The carbs on a 40+ year old bike are not always original either, and they changed from year to year in some cases.
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Offline snmavridis

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Re: Best tips on ensuring your carbs don't leak after a rebuild?
« Reply #11 on: Mar 29, 2018, 12:00:42 »
Where did you get your rebuild kit from?

+1 on using genuine parts. I recently got a rebuild kit from 4into1 and the jets and needles are way different (different/missing holes and different taper on needles). I ended up tearing back into my carbs to replace the pieces that are different after playing the trying to sync the carbs.

Also, make sure all of the gunk has been thoroughly cleaned out of the drain screw hole area and there is a tight seal there after you make sure to tighten it well to avoid it leaking. Also make sure all of the hoses are slipped on as far as they go.
Ordered it from 4into1... Was anything from that kit worth the money? And do you have a link to the genuine parts?

Offline advCo

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Re: Best tips on ensuring your carbs don't leak after a rebuild?
« Reply #12 on: Mar 29, 2018, 12:57:46 »
Ordered it from 4into1... Was anything from that kit worth the money? And do you have a link to the genuine parts?

I always replace o-rings and gaskets, and clean up and re-use all the factory brass. You should really never need to replace brass unless it is obviously worn or damaged (from a PO cleaning incorrectly, usually).

I've cleaned near 30 carbs and never had to replace any brass (jets, needles, slides, etc) except for a couple needle/seats.
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Offline snmavridis

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Re: Best tips on ensuring your carbs don't leak after a rebuild?
« Reply #13 on: Mar 29, 2018, 14:23:12 »
Take away: DONT CHANGE THE BRASS