Unless you know the person you are getting the parts from on fleaBay it is going to be a hit or miss proposition. You might have better luck with new original parts from Kawasaki or aftermarket parts from K&L.I've been rebuilding this old bike off of stuff I find used online, including Ebay....whom do you buy your new parts from for these old bikes?
So, not wanting to order another rebuild kit and take my chances, or wait for a new $90 valve, I spent a couple of hours fine-tuning the plastic separator plate and it now functions perfectly and doesn't leak. Since I had 'nothing to lose' I sanded the alignment nubs off the side of the plate that goes towards the valve-body. Careful fitting of the diaphragm, using the 4 nubs on the other side of the separator plate to provide alignment with the vacuum cover and diaphragm, aligns the whole assembly. Just offering this as a possible option for anybody in a similar bind.Just curious if anybody else has had any problems rebuilding the stock petcock with a “K&L 18-2704” kit? I have a nagging slow leak ( 1 drop/minute). I cleaned and honed the mating surfaces but had alignment issues with the punched holes in the new diaphragm mating with the raised pins on the old plastic separator plate. I was meticulous with the install but could not get a smooth wrinkle-free match. I finally carefully enlarged the two holes in the diaphram with a soldering pencil. I would have preferred to punch them out, but was too anxious to ride to fabricate such a small punch. I thought I was successful, but guess not. I will undoubtedly take it apart and try again. But, why no new separator plate, and why only 2 new flathead screws? Thoughts from you wrenches?