Join Date: 04-06-2009
Location: On top of my bike!
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Re: Clunking noise on engine....
I noticed a lot of the older motorcycles i've worked on do that including my 82 750 nighthawk and 90 fzr600r do that to some extent. The newer ones don't do it nearly as much though. It almost sounds like a garbled mass of metallic noises or like a imbalance. If i had a guess i would say that its the transmission gears meshing. at that slow of a speed and with the larger teeth, it wouldent surprise me especially if its doing so at the natural frequency of the engine. then again, the gears are not perfectally round so that could give it the illusion of a engine knock.
Last edited by MTXMUGEN; 04-16-2009 at 11:56 AM.