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1998 RM125. Need carb help again... Needles this time.

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Does anyone know how to decode OEM Suzuki needles? My carb has a R1469N or NS? in it. Stock needle is a R1470MS. I am thinking of going stock on the needle to see how the bike runs but I'm not sure what the difference is in last 2 letters of the designation. For example R####MS, NS, N. There is a chart that kind of explains it on jetsrus.com, but it doesn't really cover the MS NS thing. Help appreciated

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Well the “M” is the 1/2 clip variant of the “N”. Don’t know about the “S” part, or if it even matters much. 

The 69 and 70 is starting diameter. This affects 1/8 throttle position which is where all my 250’s needed help...

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1 hour ago, Jeremyf1 said:

Well the “M” is the 1/2 clip variant of the “N”. Don’t know about the “S” part, or if it even matters much. 

The 69 and 70 is starting diameter. This affects 1/8 throttle position which is where all my 250’s needed help...

What's "1/2 clip" mean?

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Oh I see. Thanks for that insight. The illustration was helpful

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