Kawasaki NINJA 650R User's Manual And Installation Instructions - page 16
damper at the top (each side, there from manufacture) of the meter cover so I have added clear
prop tape ( a thick clear weather resistant tape we use on aircraft prop heater elements) down
each side and a couple of small strips at the bottom. This separates the windshield from the
meter cover.
Posted: Mon May 15, 2006 1:04 pm (Darklogic)
Well, I did have it stripped down again this weekend. This time I did the search systematically,
revving to 4K rpm and listening for the buzz and then going out for a short ride with the bike in
various stages of undress so that I could listen while riding. I removed piece after piece until only
the headlight assembly and upper cowling remained. The buzz was still there, as angry as ever.
After some experimentation, I found that the upper cowling directly underneath the headlight
seemed to be making the noise. It seemed that the insulation I'd done there was not good
enough.
I took some soft rubber strip a few millimetres wide (dunno what it is used for - found it in the
hardware store; neoprene would work well too, as this was quite similar to neoprene in terms of
weight and compressibility) and using double sided tape, stuck it to the bottom part of the upper
cowling assembly just below the headlight. For good measure, I added some to the top part too,
as indicated in the picture below.
The key to eliminating the buzz in my case was to ensure that the rubber that I put onto the
cowling just below the headlight protruded a couple of millimetres so that when the headlight was
put back in place and mounted using the bolts, it sandwiched the rubber between the headlight
and the cowling. The following picture shows the rubber protruding enough to create a
reasonable damping effect: