FX-1 Mikuni sbn 44 nut size

[Klereue]

Hey guys, last summer I lost a nut off my carb and now i'm shopping around to replace it. I cannot find it anywhere online and hoping it's just a standard size I can pick up from a hardware store. Can anyone point me in the right direction, or know what size this nut is?

 

[Big Kahuna]

Thinking M6. But I would lose the choke and install a primer.

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[mk1]

Whats the benefit of the primer over the stock choke..?

 

[Big Kahuna]

The primer lets you pump gas directly into the carb, The Choke just lets the gas build up by creating more fuel pressure. Removing the butterfly and shaft will help with the overall flow of the carb.

 

[mk1]

Cool , good to know that. Thanks...