22nd Sep 2014, 17:42
A number of factors can contribute to front-end shake. First check the front tire for uneven wear. Some tires will easily start cupping on the front of these big Kawasaki ZG1200s. This might be due to tired fork springs or uneven levels of fork oil in the fork legs. I have found that the main reason for front-end shake is due to worn steering head bearings. So replacing the tire may help, replacing the steering head bearings will probably be the cheapest fix, and have someone check the forks if you're unfamiliar with servicing them. In the meantime, don't let go of the bars.
26th Feb 2017, 17:32
Simple solution - tighten the steering nut 1/4 turn. A regrease is a good idea since you're in there.
10th Sep 2014, 20:12
If you figure out the"Harley" head shake, let us know please! Mine did it this morning, and lucky me it was not bad and at about 40 mph. The other owner changed tires and added a fork SuperBrace, which he said mostly cured it, but not all if you light finger the bars.