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Re: Starting my 1957 M21

If you could tell us the jet and needle sizes that would be really helpful!

email (option): cas.vanderwoude@gmail.com

Re: Starting my 1957 M21

Cas
If you could tell us the jet and needle sizes that would be really helpful!

Absolutely agreed, but on the other hand really only interesting once the bike is being ridden with plug-reads and so on.

Always interesting with details on Carbs. Even if I think I'll still be prefering the Concentric I just bought.

Re: Starting my 1957 M21

Well first look at the plug shows a nicely burning engine, I would expect nothing less!

I installed the chain today and will look for a window for a test ride. It's about 10 PM here now and just got the chain done, I will make no friends starting her now! For the carb, here are the sizes (I think). It has a starting circuit, not a choke. The links have the technical info and here it is also:

 photo carb_zpssm5mvdzy.png

http://www.keihin-na.com/aftermarket/pwk/

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