I have a 1994 sportsman 400 2-stroke. I am looking to get a bit more power out of it and I have read that some people have installed clutch kits on their Sportsmans with some great results.

The riding I usually do is trail riding in the rocky mountains in Utah. So trails can be a basic dirt road, and 100 yards later, a steep rocky road. So I am looking to increase the lower end power, without giving up too much top end speed.

I cannot seem to find any tech articles about what weight of clutch kit spring(s) to use, whether to change the weights, and or what combo of spring / weight would give me a good power boost.

Any information would be very appreciated.