I recently purchased a 93 Skandic with 1700km on the odometer. It starts fine and initially runs well with good power, after approx 30 minutes it will lose power and appear to run on on cylinder, it will occasionally run again with full power but often not run again properly until it has cooled down. The old owner replaced the cdi box and plugs. People are pointing me towards the coil or stator, anybody have more ideas? I have heard that short circuits in the wiring can cause issues as well.