Headstock Bearings: Honda C90 (1975-2003) - Cup and Cone Style Honda NSR80 If you're having spark issues

If you're having spark issues with your YFM600 then it's a no brainer to get your coil upgraded

Yamaha RD 200 DX (Spoke Wheel) (1974-1978)

To replace OEM: 5VX-82310-00 / 5VX-82320-00

with 1 HT lead and spark plug cap

Kawasaki KLX 650 R D4 (1999)

Headstock Bearings: Honda C90 (1975-2003) - Cup and Cone Style Honda NSR80 If you're having spark issuesBrand new set of headstock steering bearings to fit: Honda C 90 (89. 5cc) (1975 1980). Honda C 90 ZZ (89. 5cc) (1979 1984). Honda C 90 C (85cc) (1983 1985). Honda C 90 E (85cc) (1984 1986). Honda C 90 MF (85cc) (1985 1986). Honda C 90 Cub (85cc) (1987 2002). Honda C 90 MG E Start (85cc) (1987 1992). Honda C 90 MP Cub E Start (85cc) (1993 1995). Honda C 90 MT Cub E Start (85cc) (1996 2003). This set of head stock bearings are cup and cone style and