2004 Ski-Doo Racing Handbook, Page 228Get this manual
SECTION 072003 MX Zx 440 INFORMATION
2003 SKI-DOO MX Zx RACING TIP SHEET
SKI-DOO RACING, 7575 BOMBARDIER COURT, WAUSAU, WI 54401-8035 NUMBER: 01 NOVEMBER 11, 2002
WARNING
This information relates to the preparation and use of snowmobiles in competitive eventsBombardier, Incand Bombardier Corporation disclaim liability for all damages andor injuries resulting from the improper use of the contentsWe strongly recommend that these modifications be carried out andor verified by highly skilled professional racing mechanicIt is understood that racing or modifications of any Bombardier made snowmobile voids the vehicle warranty and that such modifications may render use of the vehicle illegal in other than sanctioned racing events under existing federal, provincial and state regulations