headstock bearings and seals yamaha xs650 xs 650 1975 1983 Kawasaki GPX400 This set of head stock This set of head stock bearings are taper roller style bearings that have been manufactured to replace the original set of steering bearings on a DR750S Desert for the years 1988 (SJ) and 1989 (SK) If you're having spark problems on your Honda CB400 then it's a good idea to get some new coils on the bike as these could be the culprit to a weak spark The seals are not included in the measurements This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a Yamaha XS650 for the years and models shown above