04-04-2014, 05:37 AM
(04-03-2014, 10:36 PM)HondaJon_imp Wrote: I heard a similar noise after my first oil change to Amsoil 10w40 full synthetic.
Dumped the oil after a quick run and went with Honda HP4S Full Synthetic 10W - 30. NOISE WAS GONE AND HAVE NEVER HEARD IT AGAIN.
My guess is that the oil passages on the CB are very small and specifically designed for 10W-30.
Thank you Jon, i have been trying to help and get this point across through out this thread. These dealer's use bulk oil because its cost effective. They more than likely use the same oil in there service department regardless of what bike there servicing.