03-17-2022, 12:47 PM | #1 |
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97 carburetor
Building an engine for a customer and he bought 2 new chrome 97 carbs, the good ones. They look pretty but when tested on my test mule engine, I turn the left screw all the way in and the engine still runs. In fact, it runs quite well. Idles at around 20" Hg. Both carbs act the same. Any insights? Thanks, Jack
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03-17-2022, 02:39 PM | #2 |
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Re: 97 carburetor
Jack,
Have your customer contact Max Musgrove [email protected] or 801 301 6114......Max will point him in the right direction..... Charlie ny |
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03-17-2022, 03:01 PM | #3 | |
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Re: 97 carburetor
Quote:
After all that they run as good as they look. |
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03-17-2022, 04:38 PM | #4 |
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Re: 97 carburetor
Do you see any fuel being pulling from the dump tubes up above? If you have enough air/vacuum being pulled, then the main jet dump tubes will begin to flow fuel - which will keep the engine running even though the idle circuit is closed.
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03-17-2022, 08:24 PM | #5 | |
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Re: 97 carburetor
Quote:
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03-17-2022, 09:07 PM | #6 |
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Re: 97 carburetor
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03-17-2022, 09:47 PM | #7 |
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Re: 97 carburetor
Jack, your experience with the English Stromberg's is a bit disappointing to me. However, I was actually asking "drolston" about the carburetors he got from Speedway. Sorry I wasn't clearer.
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03-17-2022, 09:49 PM | #8 |
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Re: 97 carburetor
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03-18-2022, 11:42 AM | #9 |
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Re: 97 carburetor
Got the carbs running much better.The floats were a little high, so set them to spec. Idling at around 21" hg at 12.5 - 13 A/F ratio. Runs best with the left idle screw out about 1/4 turn, but it does control some now. Will try lowering a little more. Goes to show something i knew, but overlooked. Never trust anything out of the box. I do think these are excellent carbs. Just need a little TLC. I hate to mess with the throttle plates, but it could be the left has a slightly larger opening than the right.
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03-18-2022, 07:34 PM | #10 | |
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Re: 97 carburetor
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