Adding parts to bike, Do I need to adjust jetting?

[ceeeyadl]

I have a 1992 Yamaha WR200. I just purchased a FMF Fatty Pipe, Turbinecore Spark Arrestor and FMF O.E.M. Torque Reeds. I believe the Pipe and Spark Arrestor I currently have are after market (Pro Circuit I believe) and the reeds are stock. The pipe I currently have has a huge dent in it and that is why I am replacing it as I have been told that I am losing power do to the dent. I bought the spark arrestor because it matched the pipe and thought I would get a good boost of power and torque. My question is after I install the new parts will I need to adjust my jetting? I have heard alot of talk on jetting and not sure what it is and what I need to do if I need to adjust it.

Any feedback would be appreciated.

Thanks for your time.

David

 

[a454elk]

As a base setting, go with what they suggest for the pipe and reeds. They usually give you a good starting point and you can work from there. The rest depends on elevation, climate, etc. You can search for a jetting post and there should be some good results. Good luck.

 

[ceeeyadl]

Thanks for your help.

David

 

[luvtolean]

Assuming your bike was jetted properly for the Pro Circuit stuff, the jetting you have now should be fine as a baseline.