Lately I get a lot of people asking about Amal pilot jets. This is what determines how your bike runs at low throttle openings.

I think it was about 1968 when Amal stopped using a screw in pilot jet and started using a pressed in bush type pilot jet. The carbs still have the hole and the threads for the old style (it didn’t fall out).

What you have to do is remove the pilot jet air screw on the side of the carb. (it’s the horizontal screw). Use a bright light and you can see the orifice at the bottom of the passage, it’s tiny.

You’ll need a very small (.010″) drill bit or a a piece of wire to poke through the opening.

If you’re bike has been sitting for months (or years) and your bike runs lousy at small throttle openings, this is your problem.

If you want pics, I’ll get to it asap.


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