Headstock Bearings: Honda XR500 XR 500 (1981-1984) Yamaha IT500 upgrading the coils is definitely

upgrading the coils is definitely a good place to start

This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering (cup and cone style) bearings on a Yamaha YZ250 for the years and models shown above

Kawasaki VN 1500 B2-B6 (1988-1992)

If you're having spark issues with your YN50 then it's a no brainer to get a new coil on the bike

Headstock Bearings: Honda XR500 XR 500 (1981-1984) Yamaha IT500 upgrading the coils is definitelyBrand new set of headstock steering bearings to fit: Honda XR 500 R (1981 1984). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on an XR500 for the years and models shown above. Top and bottom headstock bearings. Both sized ID26 x OD47 x WTH15. All sizes in mm