Headstock Bearings: Yamaha DT80 DT 80 (1981-1985) - Cup and Cone Style Yamaha XS750 If you're having spark issues

If you're having spark issues with your YZ490 then you should definitely consider upgrading your coil to a performance coil

39K-82310-40

If you're having spark issues with your LT-F 250 then it's a no brainer to get a new coil on the Quad

The models are A2

A & SA sub models

Headstock Bearings: Yamaha DT80 DT 80 (1981-1985) - Cup and Cone Style Yamaha XS750 If you're having spark issuesBrand new headstock steering bearing set to fit: Yamaha DT 80 MX (1981 1983). Yamaha DT 80 MX (MK2) (1984 1985). This set of steering stem bearings are cup and cone style bearings. They have been manufactured to replace the original set of head stock bearings on a Yamaha DT80 for the years and models shown above. Both top and bottom headstock bearings are included. FREE UK DELIVERY! Worldwide delivery available.