Fitting DOMA pipe, jetting need adjusting?

[mike-evans]

As title, I have a standard KTM 125sx which i'm fitting a full doma system too, question I have is, will I need to have the jetting adjusted?

Which circuit will be mostly affected by the DOMA system?

 

[arnego2]

mid to top on mine.
My bike, doma system fitted is a YZ250

 

[mike-evans]

So was that needle and main to go richer? or just the main?

 

[arnego2]

I run a JD red needle in third and a main of 185 in the doma set up and with a PC I use NP3 and a 182. The main has some influence on the needle. So the main alone should do. Question is how do you ride your bike right up close to WOT or more down around the middle where the needle reigns?

 

[mike-evans]

TBH, I'm no where near as dareing as I used to be, so my riding style is mostly mid to top... On and off the band...

would it be best to fit the pipe system, then ride it and see how it runs and checking the plug?

Or as a precaution, richen the main by 1 then ride it?

 

[arnego2]

Sure. I think you need to run it about 2km to see some difference on the plug.