Yamaha R1 Forum: YZF-R1 Forums banner

black smoke

  1. 2013 R1 Overfueling on startup?

    09-14 R1 Mechanical Help
    Hi guys. I recently bought a 2013 R1 track bike. However on start up when cold it seems to over fuel and struggle to start. When it does finally start it takes a couple of seconds to get running properly and then it basically just spits out black smoke until its burnt off the rest of the fuel...