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Post by dando127 on Nov 22, 2023 1:26:56 GMT
What is the hole beside the low jet needle for? It is below the throttle shaft. It looks like a screw could go in there. Does it need to be clean? Is it an air passage?
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Post by Doo640ER on Nov 22, 2023 13:01:41 GMT
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Post by dando127 on Nov 22, 2023 15:20:42 GMT
The carb is an HD20A mounted on a 640. I also have an HD that was on a 292. It has the hole as well.
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Post by dando127 on Nov 24, 2023 2:05:12 GMT
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Post by olyman on Nov 26, 2023 23:46:35 GMT
That's OK. It's nothing to worry about. I think it's a dummy port for a different model of carb, but the mold it was made from is common on both. I don't think it's open at all to the inside
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Post by dando127 on Nov 27, 2023 20:05:35 GMT
Perfect....thanks. I was worried after rebuilding the carb....and then finding crud in that hole....
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