WD Motorcycle forum

Author

Comment

Jan 29, 2024 - 4:02PM

Correct carb for my M20

I have just discovered I have the wrong carb , a 376/30 . I’ve seen a concentric recommended as a good replacement. Can I ask for some expert opinions ?😁

email (option): royattheeasel@icloud.com

Noam Z

Jan 29, 2024 - 7:48PM

Re: Correct carb for my M20

Hi Roy.

The correct original should be Amal 276C/1B

Cheers,
Noam.

email (option): noam10@gmail.com

Ron Pier

Jan 29, 2024 - 9:53PM

Re: Correct carb for my M20

I think he has a post war model Noam. Probable better to use the BSA Forum https://www.bsaownersclub.co.uk/bsaoc_forum/index.php

Ron

email (option): ronpier@talk21.com

Bruce

Jan 29, 2024 - 11:06PM

Re: Correct carb for my M20

The M20 and M21 started using the 376 carb in 1955. Assuming you have a 1955 of later bike, the correct carb would be a 376/21. The carb you have 376/30 is from a 1955 or 1956 Panther 100. The only difference between the two carbs is the slide cutaway.

A concentric will certainly work if that is what you want.