Right Jetting ?

[Ryan300exRider]

I just ordered my Sparks X-4 System for my 300ex and i have a k&n air filter with outerwear and run an open airbox. My question is that the guy at sparks told me to run a 152 main jet but thats it should i go and buy a new pilot and needle or do they come with that becuase i have no idea of jetting since this is my first time.... Thanks

[lilpoppy]

Just call Sparks and ask them or check their website. They have some jetting specks on there but im not sure about a 300 ex.