Smoke 2 vape Rouen Quevilly Vape Shop in Rouen, Normandy Colorful Smoke Of Pink And Blue On A Black Isolated Background. Background From The Smoke Of Vape Stock Photo, Picture and Royalty Free Image. Image 97694851. 18,697 Vape Color Smoke Royalty Free Images, Stock Photos & Pictures Shutterstock what different exhaust smoke colors indicate about a vehicle's health: Black Smoke: Indicates a rich fuel mixture. This usually means the engine is burning too much fuel and not enough air, often