Just added a yoshi slip on to my 08 cbr and now it wont start. Not sure if they're related but after the install I started it twice without any problems, both times I ran it for 30 seconds to a minute. A couple days later I went to start it again and couldn't get it to catch. There's fresh fuel in the tank, charged battery, kill switch in the correct position. I hear the fuel pump come on with each attempt along with the two relays. There was spark but I replaced the plugs anyways to rule that out. Also the spark plug smells of fuel after a start attempt and I'm getting white puffs of smoke out the tail. Anyone have any ideas? I'm stumped.