Hey I Just put on a yoshi slip on. Im not sure if i should rejet its not sputtering or any thing, and seems to run ok. im running no lid the pro design/K@N and had it jetted before I got the pipe.

 

That would depend on what jets are in there now. 146/148 would be the minimum I would run with that set up.

 

I would say that you could probably go up one main jet size from what you're at right now. The major jetting changes that I've found have been to offset the change in the airbox/intake side. If in doubt, just change the jets and see what happens.

You never said what kind of changes that you did notice when you changed pipes. Let us know... that should help out some.

 

I would check the condition of the spark plug first to give you an indicator of where you are running lean\rich.

 

Im not sure what the jet size is now because the dealer put it in and didnt tell me. As for a change in the machine it goes good now. Nice lowend and midrange power gain. I called the dealer and they said if its runnig fine i doesnt need to be rejetted which makes sense. I Know that people here Know more. Is the raptor sensitive to jettin if i rejet can i get some more power? Later