Honda CB550K3 / CB550F Ignition Key Switch

Part: Ignition Key Switch for  Honda CB550K (Late Model 77-78) / CB550F / CB750K (77-78) / CB750F / CB750A Hondamatic

Why You Need This: Lost the keys to your dad's CB550F? Snapped one of in your custom CB550K? Stop wasting time looking for replacement keys and codes. This is a direct bolt-in replacement for the original Honda CB550 / CB750 ignition switch, complete with two keys. It has a lock position with a physical tamper-proof locking mechanism.

Installation Tip: Clean the terminals of the connector plug on the wiring harness with some rubbing alcohol and fine steel wool, you might need to pop them out with a small screwdriver, depending on how crusty they are. If you're wiring this switch up from scratch it's wise to look at the factory service manual for your specific sub-model. Here's the pinout and generally what-goes-where - Looking at the pins on the switch - 3 on top, 2 on bottom:

• Top left - Brown (headlight)
• Center - Red (main fuse)
• Top right - Black (12v+)
• Bottom left - Brown/white (headlight or unused)
• Bottom right - Brown (usually tied to other brown)