Crankshaft: Honda C90 C 90 (1993-2003) Kawasaki ZX-10R It is a high performance

It is a high performance coil that will produce a better spark and more efficient burning of fuel

They have been manufactured to replace the original set of head stock bearings on a Yamaha YQ50 for the years and models shown above

To replace: 16950-GEL-701

If you're having spark issues with your YZ125 then you should get a new coil as they are the usual culprit

Yamaha FZR 750 R (OW01) (1989-1990)

Crankshaft: Honda C90 C 90 (1993-2003) Kawasaki ZX-10R It is a high performanceBrand new crankshaft to fit: Honda C 90 Cub (1993 2002). Honda C 90 M Cub (1993 2002). This crankshaft has been manufactured to replace the original on a Honda C90 for the years and models shown above. To replace OEM: 13000 GT0 000.