1982 250r DG PIPE

[83atc200]

i just bought a dg pipe and silencer for my 1982 250r and was wondering if anyone knew if i needed to re-jet the carb or just move the needle up one notch on the seat so it will run a little richer... or maybe i dont have to change anything, ive heard a few different opinions.. any insight would be much appreciated!

[rgthree]

Well run it then check the plug. Then you can rejet accordingly if at all

[falloutboy]

chances are you will have to go up on your main jet size.

http://www.3wheelerworld.com/showthread.php/55086-Carb-Jetting-101-Terms-Tips-and-Jetting-Theory

[4x4van]

Yeah, if it's running good with the stock pipe, you will likely need to go up at least 1 size on the main. I made the mistake of putting a pipe (Bill's) on my 82 250R without re-jetting...melted the piston down! I believe I ended up 1 size larger on the main, but could've been 2 (alot of years ago, my memory ain't what it used to be).