There are two basic problems found on C-14 rotors: the first is a build- up of pad material that is uneven; this causes pulsing of the brakes that I would call 'moderate'. The second problem is a warped disc carrier, which can cause pulsing severe enough to blur the mirrors. The first problem can be cured by somewhat aggressive disc cleaning using some type of powered rotary tool although NOT a grinder, sandpaper or anything else that makes sparks. A paint removal wheel works very well. Warped rotor carriers and possibly warped rotors themselves have to be replaced. It is always worth trying to clean the rotors first although Kawasaki has been <generally> very good about changing the front rotors out under warranty.
I promised a photo or two of how to clean the rotors and will be posting them shortly. My new front wheel seals need to be installed and I will show the rotor cleaning method I use when the seals get changed- otherwise I would have to pull the front wheel off the bike twice.
Brian
I thought it was a continual build up of pad material in certain areas of the rotor causing the pulsing?