Headstock Bearings: Yamaha DT125 DT 125 (1974-1982) - Cup and Cone Style Honda XL125 If you need to change

If you need to change the bush's you can use your old ones

ACI603 & ACI604 or if you have an EFI Technology unit it will replace the following CDI stamped units AC2i

YFM 80 Badger (1992-2001)

then it's a no brainer to get a new coil on the quad

then it's probably your coil that's knackered

Headstock Bearings: Yamaha DT125 DT 125 (1974-1982) - Cup and Cone Style Honda XL125 If you need to changeBrand new headstock steering bearing set to fit: Yamaha DT 125 (1974 1978). Yamaha DT 125 MX (1979 1982). 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 DT125 for the years and models shown above. Both top and bottom headstock bearings are included. FREE UK DELIVERY! Worldwide delivery available.