Went to start the bike this morning and it went whirr bonk... It turned over for a split second and then made a loud donk noise and stopped turning over. Turned off ignition, tried again, same thing. I thought the bike was dead but after a few more tries it kicked in and started but roughly. Bit of smoke out the pipe but it was early morning... After that it seemed fine. Any ideas what it may have been?
Suzuki GSX750F 2000