I bought a used 02 sportsman 400 I live at 6000 feet elev so I changed the primary spring to a polaris white thanks to you guys and it works alot better. rejeted it to a 145 much better. I now want to tweek the secondary clutch, I do have EBS does anyone know if there is a stiffer spring mine is white with a green stripe or maybe a better helix? Also my speedo is screwing up it doesn't read till about 15 mph then it jumps to 43 mph no matter how fast or slow I go till I stop then it goes down. it says I put on 200 miles the other day I only rode for an hour on mountain trails! that's screaming isn't it!! all wheel drive does engage don't have A problem there just wondering if it would effect anything else and if so how much is a new one? THANKS KRIS BASSETT