dn9566

Member
Aug 1, 2002
2
0
jet settings for Kdx 220 with Boyseen rad valve or Moto Tassinari v-force valve?

I own a 1999 KDX220, I modified the air box and put an FMF gnarly torque pipe and power core II silencer on my bike. I currently have the stock jetting a 42 pilot jet and 145 main jet. If I put Boyseen reeds or a Moto Tassinari v-force valve on my bike will I have to drop to a 40 pilot jet and a 142 mian jet? Also which is better the Boysen rad valve or the Mototassinari v-force valve for increased performance?
 
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