04-22-2018, 01:46 AM
This is an old thread, but I'll add my two cents. I had a similar knock/rattle from the engine that appeared around 18,000 miles on my 2013 CB1100. It would rattle on startup and then disappear after about 20 seconds. At around 19,000 miles it seemed to be getting worse, so I checked this forum. I saw CuryJoe's comment about the balancer backlash adjustment. I did this adjustment (5 min) and it solved the problem. The adjustment is on p. 11-33 of the 2013 service manual.
Thanks for the help guys!
Thanks for the help guys!
