What a coincidence - I lost my Hex nut on Sat., but the kickstarter stayed on. Check the parts diagram on www.buykawasaki.com . I don't believe there is a washer, but the diagram shows the threads to be labled "fine". Not sure what size though. When you find out, let me know.
I just rplaced mine and it was a metric #12, the trick is though that it was a japanese metric (not european, nor american). The thread desigation was 1.25, I got mine at a small engine repair shop. Hope that helps.
I just rplaced mine and it was a metric #12, the trick is though that it was a japanese metric (not european, nor american). The thread desigation was 1.25, I got mine at a small engine repair shop. Hope that helps.