Amal 930 leaking through tickler - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 18 (permalink) Old 09-06-2009, 01:30 PM Thread Starter
jrn
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Amal 930 leaking through tickler

Hello I have a problem with my right side carb. I've taken it apart 3 times now and cleaned it. It's fine for about 5-6 miles then the gas starts pouring out the tickler like a sticky float. From my understanding with these plastic floats there is no adjustment on it so all you can do is clean it? Am I missing something here, the carbs are only 2 years old and I run fuel filters. Funny thing also, if I shut the petcock off and I still see plenty of fuel in filter, it will not run out of the tickler, only when the petcock is on and the revs get up does it start pouring out. Thanks
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post #2 of 18 (permalink) Old 09-06-2009, 01:49 PM
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Hi jrn, and welcome to TR
take a look at these it will give you an Idea of what to do.

https://www.triumphrat.net/vintage-te...air-video.html

If your carbs do not have, Viton tip needles (rubber bit on the end) you should invest in a pair.
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post #3 of 18 (permalink) Old 09-06-2009, 03:36 PM
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Could also be a leaky float that isn't living up to it's name...

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post #4 of 18 (permalink) Old 09-06-2009, 08:48 PM Thread Starter
jrn
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It has a coated needle and the float is not leaking. I see now how to adjust the seat but I am not sure how to check the float. I pushed down on the needle and held it then pushed the plastic tabs onthe float to see how far it would raise. It appeared to be level with the top of the bowl is this where it's supposed to be? My book says nothing about the float level.

Thanks
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post #5 of 18 (permalink) Old 09-07-2009, 08:32 AM
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Hi jrn,
You should just lightly press down on the tangs, the gap at the front
( from bowl to float) should be 60-80 thou.
As quick fix, if they are not too far out, it is acceptable to fit two gaskets.
With the bowl removed and tickler released,
do the ends hang lower than the bowl face? (what is there position in carb)
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post #6 of 18 (permalink) Old 09-07-2009, 10:25 AM
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I need to scratch my brain, but how does 2 gaskets IMPROVE the situation?

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post #7 of 18 (permalink) Old 09-07-2009, 11:07 AM
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By adding a gasket you increase the distance from the top of the fuel to the top of the float chamber. Same effect as lowering the float.
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post #8 of 18 (permalink) Old 09-07-2009, 11:13 AM
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Ah, yes, that's right, the seat is in the BOWL, not the BODY.

Ding!

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post #9 of 18 (permalink) Old 09-07-2009, 11:28 AM Thread Starter
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The vids are great, but the troubling part to me is my float seems to be set correctly. The needle looks to be in great shape as I said the carbs are only 2 years old and less than 2000 miles on them. It has to be a float issue because why else would the gas be coming out of the tickler? I'm thining about lowering the float a bit just because I'm stuck, but any other ideas would be appreciated. I might try the extra gasket to lower the bowl a tad and I'm assuming move the fuel level away from my tickler the thickness of the gasket. Obvioulsy my gas level has to be too high if it's pouring out of the tickler. Maybe it is time to dump the Amals which have been great up until now!
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post #10 of 18 (permalink) Old 09-07-2009, 03:53 PM
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Amals, especially new ones, are some of the easiest components to sort on a bike.

Never overlook the simple, stupid little things that can be done wrong to produce significant issues.

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