This is a high quality replacement Ignition Key Switch.  If either the key or the ignition switch has broken or corroded then it's time to replace it.  You may have lost your key or may even be worried about the security of the stock OEM ignition switch if someone has made a copy of the key.  This ignition switch comes with two keys and plugs into the standard OEM connector plug.

Fits Years 87-90: (87, 88, 89, 90)
1987 Kawasaki ZX750 F1 F2 F3 F4 Ninja Motorcycle
1988 Kawasaki ZX750 F1 F2 F3 F4 Ninja Motorcycle
1989 Kawasaki ZX750 F1 F2 F3 F4 Ninja Motorcycle
1990 Kawasaki ZX750 F1 F2 F3 F4 Ninja Motorcycle

P/N 21-5251
Main Switch Replaces
27005-5009, 27005-5024, 27005-5035, 27005-5038, 27005-5047