2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 433Get this manual
Section 08 ELECTRICAL Subsection 01 (IGNITION TIMING)
IGNITION TIMING
SERVICE TOOLS
Description Part Number Page
9 volt adapter digital induction type tachometer MPEM programmer supply cable TDC gauge Vehicle Communication Kit (VCK) 277 Engine Type This 277 engine type is equipped with Rotax Electronic Reverse system (RER)It uses single coil ignition system and trigger coilsRefer to MAGNETO SYSTEM for more informationThis section is mainly divided in parts, the first one using Top Dead Center gauge to VERIFY THE MAGNETO FLYWHEEL TIMING MARK POSITIONThe second one using stroboscopic timing light to CHECK IGNITION TIMINGFlywheel timing mark position verification is required to: To detect missing or broken magneto flywheel Woodruff key which change the timing, with eventual break down of the engine To correctly locate and mark timing mark on new service magneto flywheel To verify the correct location of the factory timing mark To detect wrong magneto flywheel corresponding to different engine typeAlways verify magneto flywheel timing mark position before checking ignition timing