I recently bought a used 2005 Yamaha Vino 125 cc scooter. It runs relatively well, but has a problem starting sometimes. It seems like it just won’t “turn over.” It starts to rev up but then kind of sputters and dies. Usually after several tries I can get it started, but sometimes it just won’t get going. It seems worse when it is damp or has been sitting for a long time.
Is this the spark plug (there’s only one)? There is a new battery in the scooter.