I bought the 09 klx250s back on 6/08. Big bore kits weren't available at that time. Klx300 pistons/ cylinders were. I bought the dj 2206 kit since it was for a dirt bike. Turns out it has a more aggressive taper to the needle when compared to the dj 2152 kit. Cutting a couple coils off the spring accomplished the same results as the dj2152 kit.

Which kit would work better with a big bore kitted klx250 s or sf?