I bought a DR. D exhaust for my 660, i put it on and rowed it . It sounds amazing. the next time i take it out i couldn't put it in any gear without force,,It sounded like the idle was really up there. (odd)thats what i said.
So I take the exhaust off the ATV and put the original back on, same thing is happening with the idle. I backed off the idle and we were good to go!

BUT what i want to know is, did the new exhaust shake the idle pin. or do i need
to jet the 660 with a aftermarket exhaust.....

help.........................

 

its prolly best to give it a rejet, id do a plug chop and see just what the plug is looking like with that new pipe on it, its prolly a little lean right now.

 

thanks. the rejetting ideal is probably the best way to go.