Looking to run a set of Arctic Cat skis on your Thief River Falls-built Yamaha sled? In most instances, all you need to make the conversion is a new set of ski rubber dampers – order two of Arctic Cat #3603-237. This is a critical piece to match the spindle bottom to the ski, controlling the amount of nose and tail movement of the ski as well as helping to damp the movement.
Having a set of these ski spindle rubbers also allows you to use aftermarket skis made for Arctic Cat models. In many cases you will not need as aggressive of carbide runners simply due to the added weight and ski pressure with the Yamaha (4-stroke) models. If you still experience heavy steering, you can reduce the amount of weight being placed on the skis by increasing the tension (preload) of the center shock spring (rear suspension) which pushes down harder on the front of the rails and track, carrying more weight on the track and less of the skis. A more drastic option is to lengthen the limiter strap, which allows the front of the rails to drop down further, also causing there to be more weight carried by the rails and track and less on the skis, resulting in reduced ski pressure. Think of the spring tension as fine tuning (less effect), and the limiter strap coarse tuning (more effect).