superbolt44

Anybody had advanced timing issue with 80 to 83 XT250. Bike started to kick back when trying to start. Checked timing and it is way too far advanced. Timing is a little over two inches distance on flywheel advanced. All source coil and pulse coils check good. Any possibility CDI unit has just shot craps? Please let me know if you have seen this issue. Have checked position of crank. "T" mark lines up when at TDC.