2007 Arctic Cat Four-Stroke Factory Service Manual, Page 369Get this manual
! NOTE: The master cylinder is non-serviceable componentIf any wear or damage is detected, the master cylinder must be replaced 1Position the brake assembly on the handlebarSecure with two torx-head screws (F) and clamp; tighten securely2Install the brake fluid hose (B) to the master cylinder with the banjo-fitting bolt (A) and two new crush washersTighten securely
3Inspect the brake fluid hose for cracks, deterioration, and the condition of the fittings (threaded and compression)INSTALLING