What springs do you guy's reccomend for a sprtsman 400? , Looking for better mud perfomance, slightly higher stall speed (RPM's) and tighter belt grip?

 

Just changing the primary spring will help with your engagement but not much after that. You would be much better off getting a whole clutch kit so that it will engage better, accelerate faster, have more throttle response, and have less belt slippage. **edited by atvconnection moderator**

 

Polaris white primary spring and an Aaen blue or HPD violet secondary spring will set you right up.

 

i went with the polaris white primary spring and i love it.