2011 SixDays 250 JD jetting (YZ kit)

[thumperrider1]

Anyone running a JD jet kit for a YZ250 in their ASII carb? Curious what your settings are. I have the 38mm carb on mine. The recommended setting for the YZ kit is:

45 pilot
Red needle/3rd clip
172 main

Seems like a lot of pilot to me. It's 75-80f here now and we ride sea level to 1500ft.

 

[tnttimber]

Anyone running a JD jet kit for a YZ250 in their ASII carb? Curious what your settings are. I have the 38mm carb on mine. The recommended setting for the YZ kit is:

45 pilot
Red needle/3rd clip
172 main

Seems like a lot of pilot to me. It's 75-80f here now and we ride sea level to 1500ft.

I run a 45 in my 2010 Sixday 250. I cant figure out how most of the specs I see other riders running on this forum have such a lean pilot. My bike made more and better power by richening up the pilot.

 

[thumperrider1]

Thanks. Are you using the Red needle as well and the recommended Main?

 

[thumperrider1]

The jettting using those standard settings is pretty darn good. Very crisp. Gave the bike a little more bottom end and it rips up top.