What brake fluid should I use in my CB550K / CB550F / CB500K? Common Motor December 17, 2018 05:58 Follow DOT 3 brake fluid. Related articles How often do I need to clean or change the oil filter on a CB550K / CB550F / CB500K? How much engine oil do I need for my CB550K / CB550F / CB500K? What is the spark plug gap for the CB550K / CB550F / CB500K? The White / Yellow Wire Stator Coil Mod - How To Increase Charging System Output : CB175 / CB350 / CB360 / CB450 Helmet Sizing Guide Comments 0 comments Please sign in to leave a comment.