M38A1 Carb on a M38? Anyone done it?

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scubagavin
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M38A1 Carb on a M38? Anyone done it?

Post by scubagavin » Sun Feb 28, 2021 6:14 am

Hello,

I have a good NOS m38A1 carb. I am thinking about changing out the base and using on my M38. Has anyone done this? They seem to be almost identical including Model Number.

All comments and concerns are appreciated.

Kind Regards,
Gavin


mdainsd
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Re: M38A1 Carb on a M38? Anyone done it?

Post by mdainsd » Sun Feb 28, 2021 8:52 am

Doesn't work. The base looks similar but it isn't. Different bore carbs too.
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Warren Duchesne
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Re: M38A1 Carb on a M38? Anyone done it?

Post by Warren Duchesne » Mon Mar 01, 2021 4:38 am

I might have a NOS M38 carb I can trade for your A1 carb. Let me know if you want me to look. Thanks

scubagavin
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Re: M38A1 Carb on a M38? Anyone done it?

Post by scubagavin » Mon Mar 01, 2021 1:10 pm

Thanks for the info gents, I will rebuild my M38 carb that I have. Have a great day,


Gavin

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Scoutpilot
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Re: M38A1 Carb on a M38? Anyone done it?

Post by Scoutpilot » Mon Mar 01, 2021 1:37 pm

The YS 637 will not work with the YS 950 throttle. The internal venting is different. Obviously, vice-versa is just as wrong.
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EME-LT
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Re: M38A1 Carb on a M38? Anyone done it?

Post by EME-LT » Mon Mar 01, 2021 2:08 pm

Warren:

I have a M38a1 carb YS950S and a new master rebuild kit I can swap with you for a M38 YS637s.
Cheers, Lyle
Arte et Marte


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