Got a 2002 400ex. Don't get to ride it but a couple times a year. Last time I rode it was trail riding, i.e. mud, water, etc. Had no issues at all, and never have. When I got home, it was late, so I parked it without washing it. It sat for about 2 months. Well, I decided to do some work on it. Went to move it out of the shed, and she wouldn't start. Fuel is fine. Turns over fine. Battery is fine. But I have no spark at the plug. Pulled the coil, had it tested, and it's fine. Checked voltage from battery, fine. Voltage from ignition switch, fine. Any ideas why I wouldn't get any spark? Only electrical upgrade is an AMR Racing CDI box.