Hi Ferdman,

I've looked at a lot of carb rebuild/maintenance kits for the 35/40. None of them include this needle/piston with diaphragm. Nearly everything else but this.

I think I would have to buy an entire primary carb. Or, hope to find some pne who is selling individual parts of a primary carb. I do not see how the carb can possibly function without the valve assembly in place. But it can, from what I've read run even if the return feature is rendered inoperable.

Thanks

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Currently enjoying:
1967 250S - all manual with 4-spd on floor-- my Nifty 250