Rocky Mountain Dirt Riders

I was out for a ride today. 170 main, 45 pilot, JD jetting red needle 3rd clip, and air screw 1 and 1/2 turn out. It was pretty good!

Hi,

I am running a 2017 250X, all stock. I am running a JD jetting kit. It has me on a 172 Main and blue needle 2nd clip right now (riding ice on ghost lake), but once it warms up I should end up at a 170 main and red needle 2nd clip as per the JD instructions. I ride the same areas.

Hi,

I am interested and am in Exshaw, west of Calgary. I do travel to Red Deer frequently so I am sure we could figure something out. Thanks!

Kyle

I had to switch the springs to the lowest engagement rpm ones. It allowed it to engage just above idle. The springs installed from factory allowed it to rev too high before engaging for my liking.

Hi,

Just to clarify, the 450 mx bikes with stock exhaust systems failed sound testing?? Also does no spark arrestor mean that you are not able to race?
Thanks