Hello all, i have been reading a lot lately on here since i got my quad. Its a 05 white/red raptor 660. I just put pro flow k&n in it and a FMF TI-4 on it. and rejetted. It is crazy how much intake and slipon woke it up. I am using Dyno jets stage 2 kit. I had 146/148 and 4th clip. I went down to 144/146 now to lean out a little bit. It hauls ist through 4th but lays down a little bit in 5th. What do u recommend? Do i need a cam to gain top end? My cousin has the 700r with LRd slipon and k&n proflow and we are dead even until 5th gear then he walks away from me.
thanks for any comments or replies, Mike

 

Take the lid off and go with 146/148. What elevation are you at?

 

I have the lid off already, but didnt mention it. I had 146-148 mains and 2-1/2 turns out on idle mixture scew, and i just changed to 144-146 and turned the idle mixture scews out 2-3/4 turns, and clip still on 4th spot. I went and tested it out again tonight. It feels the same it lays over in 5th gear and loads up a little at low engine speed while slight load on it. If its to lean on mains would it sputter on top end? Could i be running to lean on the top and making it not pull hard on top in 5th. thanks,
Mike

 

You said you have the Dyno jet kit, they have a diagram and what not in there booklet that pretty much makes it flawless for jetting your quad.