A wire wheel was next followed by coal slag blasting. The blasting was focused in the areas where there was old remnant paint and rust, and to rough up the metal for paint. In the past I used to use "play sand" for blasting, but a friend pointed out that the silica was bad for the lungs so coal slag was used hereafter.
I love what you did with your KZ750E. I followed your build for a long time. Congrats on making BOTM!!!! I built a KZ750E back in the early 80's. I used many of the same parts you did. The GPz feetpegs, and the oil cooler were the same exact parts that I used on my E model. Your build brought back more than a few memories.
I road raced mine in a few WERA endurance races back then. I parked it when the Honda Interceptor came out in '83. After that it became my primary streetbike. Gold wheels were my trademark back then as you can see in the one photo.
1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!
Hand controls were heavily weathered so bought a couple better units for parts off ebay. Took them all apart and cleaned/greased in innards. Fixed a broken wire here and there too. Good fun and nice change of pace compared to all the painting and messy work.