Need help with 2007 Rm 250 carb set up

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12/19/2017 12:13 AM

What's the best set up for 2007 rm 250 carb jet sizes?needle height ? And anything else would be appreciated

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12/19/2017 2:07 AM

I'd go by what Pro Circuit recommends.

https://www.procircuit.com/jettingspecs2.htm

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12/19/2017 5:15 PM

Thanks man I'll check it out

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12/20/2017 3:30 AM

Some very knowledgeable guys on here when it comes to jetting. Post up more info such as typical temperatures, altitude, fuel/oil ratio, any engine work etc to get a more accurate response.

However from my experience the stock NEDH needle is pretty good. The NECJ that pro circuit is also popular but slightly leaner than the NEDH.

Pilot, anywhere from 45-50 depending on temp and needle choice.

Main usually between 165-178

48 Pilot, Clip3 NEDH and a 170 main would be a safe start

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@russ_69

12/21/2017 2:21 PM

RussB wrote:

Some very knowledgeable guys on here when it comes to jetting. Post up more info such as typical temperatures, altitude, fuel/oil ratio, any engine work etc to get a more accurate response.

However from my experience the stock NEDH needle is pretty good. The NECJ that pro circuit is also popular but slightly leaner than the NEDH.

Pilot, anywhere from 45-50 depending on temp and needle choice.

Main usually between 165-178

48 Pilot, Clip3 NEDH and a 170 main would be a safe start

When you say clip3 are you counting from the top or the bottom?

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12/21/2017 6:27 PM

RussB wrote:

Some very knowledgeable guys on here when it comes to jetting. Post up more info such as typical temperatures, altitude, fuel/oil ratio, any engine work etc to get a more accurate response.

However from my experience the stock NEDH needle is pretty good. The NECJ that pro circuit is also popular but slightly leaner than the NEDH.

Pilot, anywhere from 45-50 depending on temp and needle choice.

Main usually between 165-178

48 Pilot, Clip3 NEDH and a 170 main would be a safe start

Mx391 wrote:

When you say clip3 are you counting from the top or the bottom?

Photo

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12/21/2017 9:55 PM

RussB wrote:

Some very knowledgeable guys on here when it comes to jetting. Post up more info such as typical temperatures, altitude, fuel/oil ratio, any engine work etc to get a more accurate response.

However from my experience the stock NEDH needle is pretty good. The NECJ that pro circuit is also popular but slightly leaner than the NEDH.

Pilot, anywhere from 45-50 depending on temp and needle choice.

Main usually between 165-178

48 Pilot, Clip3 NEDH and a 170 main would be a safe start

Mx391 wrote:

When you say clip3 are you counting from the top or the bottom?

dirtmike86 wrote: Photo

Thank you! that was helpful.

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