NOT the regulator...That only limits voltage to the accessories- nothing to do with spark. Check all of your switches (key, kill, tether) first. You've done the coil. The only things left are the switches, CDI or stator.
__________________ 1992 Ski Doo Mach 1 (SC-10/2 suspended) March '07 SF.com Sled of the Month! (Lost in fire 4-13)
1992 Ski Doo Mach 1 original 2006 Ski Doo MXZ 500SS