Amal Float Bowl Gaskets

Which ones work best, the black or yellow? The black versions seem really thin.

I have fuel gushing out the bowls with the taps on and am trying to eliminate potential sources.
Have already replaced the viton tip needles. Am looking at gaskets now before lapping or adjusting the brass seat.

Set the float bowl, mating face first, on a mirror. Does it rock?

elefantrider said:

Which ones work best, the black or yellow? The black versions seem really thin.

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The black gaskets are not genuine Amal. Use the genuine thicker Amal gaskets.

And trim them where they foul the float.

Triton Thrasher said:

And trim them where they foul the float.

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Although, I've never known a genuine Amal float bowl gasket to need trimming.

elefantrider said:

Which ones work best, the black or yellow? The black versions seem really thin.

I have fuel gushing out the bowls with the taps on and am trying to eliminate potential sources.
Have already replaced the viton tip needles. Am looking at gaskets now before lapping or adjusting the brass seat.

Click to expand...

elefant
before lapping the bowl try and massage the two ears where the screws go in on the bowl. These will usually be the high spots to flatten them back to original. Push them/tap them as flat as you can before hand, and then lap away. Doing this will help eliminate removing too much material. Same goes with the bodies of the amals that contact at the intake spacer to the head. A bolt with a large pan washer on the intake side through to a dead flat surface with two 0.015" shim stock feeler material on the outer edges of the flange will cure some of the distortion common in these fragile instruments due to over tightening. I am with L.A.B. on Amal original gaskets work best.

Cheers,
Tom
CNN

Thanks all. Will get some new gaskets here and adjust the float level and flatten the bowls.
Found a good video on this.

[video]https://www.youtube.com/watch?v=XIYgj5m9RW0[/video]

That fella does a whole set of those films as he sorts out his triumph (pity its nor a Commando as of course more of it would apply to us) there are some useful tips in them (especially if you have a triumph) some of which we can also use. In the one where he refitted the carbs he has a little homemade simple tool to hold the slide spring. I made one in ten minutes from a bit of scrap its brilliant an makes getting cable into slides child's play. I wouldn't try doing the job now without it.