1999 Ski-Doo Factory Shop Manual Volume One, Page 273Get this manual
Section 06 ELECTRICAL Subsection 06 (TESTING PROCEDURE)
TESTING PROCEDURE
GENERAL
Four types of ignition systems are found on ROTAX engines covered by this manual; all are Capacitor Discharge Ignition (CDI) systemsThe following chart gives the engine types with their implemented systemENGINE TYPE 277 Tundra 277 Tundra 377 and 503 Formula SSL 377, 443 and 503 S-Series with RER IGNITION SYSTEM Nippondenso single coil CDI RER dual trigger coil CDI Ducati trigger coil CDI RER dual trigger coil CDI CHARGING SYSTEM OUTPUT 160 240 240 240
A05E05A
CDI System Identification