I have a 1986 Skidoo snowmobile. Single cylinder air cooled, electric start. The cowl is white but no decals for identification are on the sled. The ID tag is on the tunnel and the model number is 3211. I have been able to find model number charts through 1982 and after 1990 but nothing in between. Does anyone know what model this might be or where to find the model identification info.