1980 Ski-Doo Shop Manual, Page 28Get this manual
SECTION 02 SUB-SECTION (05-07)
1980 SPROCKET AND CHAIN SPECIFICATIONS
SPROCKET UPPERLOWER ELAN and SPIRIT 250 CITATION 3500, MIRAGE CITATION 4500E, MIRAGE IIE CITATION SS, MIRAGE SPECIAL EVEREST 500 E, FUTURA 500 EVEREST LC, FUTU RA LC BUZZARD 5500, GRAND PRIX SPECIAL BUZZARD 7500, SUPER SONIC BUZZARD 9500, ULTRA SONIC ALPINE 640 ER ELITE 450 LC