starting/spark issues

Had my motor rebuilt over the winter. Its a 62t . Wrapping it up now and went to start it. wont fire, Pull the plug and check spark. Its only sparking after about (roughly) 7 to 8 revolutions of the crank. All I changed over the winter was cdi to new msd enhancer and stock flywheel to used zero lightened one.
I checked and triple checked the msd connections and think I have them right but who knows. Also switched out the coil. What should I check next after I switch back to stock cdi? Could it be the flywheel? And do they go bad?
 
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