Headstock Bearings: Honda VFR700 (1986-1987) Yamaha XV535 If you're looking for a

If you're looking for a better spark then upgrading your TZR 250 coil is a good place to start

Brand new set of Headstock (Steering Stem / Taper Roller) Bearings to fit:

Yamaha YFM 350 X Wolverine (2006-2009)

If you are having spark issues with your Yamaha XZ550 then the ignition coil could be the culprit

Headstock Bearings: Honda VFR700 (1986-1987) Yamaha XV535 If you're looking for aBrand new set of headstock steering bearings to fit: Honda VFR 700 F (1986 1987). This set of head stock bearings are taper roller style and have been manufactured to replace the original set of steering bearings on a VFR700F for the years and models shown above. Top and bottom headstock bearings included. Top sized 26mm x 47mm x 15mm. Bottom sized 30mm x 55mm x 17mm. Please check sizes prior to purchase. FREE UK DELIVERY on these Honda VFR 700