I have 2 distinct, but different scenarios where I am feeling knocking through the footpegs (both sides). I have recently replaced the chain and sprockets, and the symptoms are the same as before:
Symptom 1 - engine vibes. During the normal lumpy band 5.5-6K revs I get the knocking. Happens in all gears, feels stronger in lower gears. Occurs when accelarating up and when letting off and slowing down, although to a lesser degree on the way down. It's nice and smoooth, no knocking above and below that rev range. My previous fazer of 3 years had the same rough patch, but didn't vibrate through the pegs.
Symptom 2 - rough road. Not really that rough, just some slighly broken up tarmac, or odd bumps. Kind of feels a big more like grinding, but is still felt through both pegs.
I've tried moving the swing arm to see if the bearings are shot, but there is no movement. Not sure if I need to remove the wheel shock linkage to get rid of any pre-load.
Not sure if they could both be from the same thing, based on the similar feeling, but I'd like to cure both of them.
Any ideas?