Headstock Bearings: Honda CB100 (1978-1987) - Cup and Cone Style Yamaha YF60 If you're having spark issues

If you're having spark issues with your YFM450 then it's a no brainer to get a new upgraded coil on the quad as you'll get the spark you're after

They have been manufactured to replace the original set of head stock bearings on a Yamaha SR500 for the years and models shown above

Yamaha RD 80 LC (1982)

To replace OEM top: 09265-25008

Headstock Bearings: Honda CB100 (1978-1987) - Cup and Cone Style Yamaha YF60 If you're having spark issuesBrand new set of headstock steering bearings to fit: Honda CB 100 N (1978 1979). Honda CB 100 NA (1980 1987). This set of head stock bearings are cup and cone style and have been manufactured to replace the original set of steering bearings on a CB100 for the years and models shown above. Top and bottom headstock bearings included. FREE UK DELIVERY on these Honda CB100 headstock steering bearings! Worldwide delivery available.