Join Date: Aug 2015
Location: San Antonio, Texas, USA
I have a thread regarding a similar issue. It used to be that before the bike would shut off, it appears that yours does not. From what I have figured that sound your bike makes could be related to the alternator. Since the alternator spins with the engine, if at lower rpm the bearings are bad or too worn then it could prohibit your alternator from working properly and to thus giving you this sputter.
Where does the sound seem to originate from?
Other things I would recommend are that you put in a 1/4 can of SeaFoam cleaner into the fuel tank. Be sure that you use the same type of fuel from a consistent place(always 93 octane) and that you check the battery and alternator. I used to think it was the oil pump making that noise when cold but after I took the bike apart I discovered that the noise comes from my alternator which needs to be replaced.
"Hold yer line..."