I've got an 85 110 with no spark at the black and yellow wire coming from the CDI box to the coil. I have replaced the CDI box, coil, cleaned the flywheel, stator and set the gap on the pulse generator but can't get power to the coil. The CDI and coil was removed from my running 110 so I know they're working properly. Does anyone have any ideas on what the problem could be?