Riding yesterday. After about 5 miles it started to cut out for a second or two at a time. jerks a bit when it cuts out. Feels like loses spark. Less than 200 miles on this scooter since put a BGM AC electronic ignition on it 3-4 years ago (BGM flywheel, stator, CDI, regulator…) We did a complete tear down and conserved resto including an engine rebuild seals and bearings. Added a BGM big box exhaust but everything else is stock including the top end and carb SH1/20.I just put a new plug in it and that didn’t fix it. Still cuts out and jerks after about 5 miles… Happens every minute or so and even stalled out at a light. I’m thinking electrical, not fuel, because it happens only after it warms up. TROUBLESHOOTING:Should I replace the CDI next ? then the regulator, then the stator? (less expensive parts first) This is a 3-4 year old BGM electronic ignition set-up. I think it is a 4.0 but maybe it is a 3.0 if there was one.