1981 Ski-Doo Shop Manual Supplement, Page 92Get this manual
SECTION 04
SUB-SECTION 06 (SPARK PLU G)
VEHICLE
ElanSpirit Citation 3500Mirage Citation 4500Mirage IIiE Nordik Citation SSMirage Special Everest 500EFutura 500 Everest LCFutura LlC Blizzard 5500Grand Prix Special Blizzard MXGrand Pri MX Blizzard 7500Super Sonic Blizzard 9500Ultra Sonic Alpine 640 ER Elite
ENGINE TYPE