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Hi, Robert before diagnosing any brake light issue always check the bulb and fuse first for integrity a brake light staying on is usually caused by the front brake light switch, which is mechanical, not disengaging. On early models moving the throttle control housing closer to the front brake master cylinder is the main fix. On late models, the switch gets tweaked and needs to be realigned. A brake light that does not come on when the brake lever is applied can be caused by a faulty switch or no continuity in the wiring at the switch. The rear brake light switch is hydraulic and it is extremely rare to malfunction in a closed circuit condition causing the brake light to stay on. Usually, rear brake light switch issues are caused by no brake pedal free play or a sticky rear master cylinder piston. A brake light that does not come on when the rear brake pedal is depressed can be caused by a faulty switch, air contamination in the brake line, or no continuity in the wiring at the switch. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day. Motorcycle front brake light switch Universal How to Repair2 HD Replace Motorcycle Rear Brake Light Switch http://bob.ollis-brown.co.uk/manuals/cbf1000/2006-2008-CBF1000-A-21%20LIGHTS-METERS-SWITCHES.pdf Honda 2006 CBF1000 Owner Manual Free Honda Motorcycle Service Manuals for download
if the plate of the disc brake is really bent, you would feel a pulsating brake when you pull the lever during braking. If its bent, you'll need to replace it or have the service center replace it. It will cost you. They wont give it for free. and to answer your question, yes the disc brake comes in replaceable parts.. .or aftermarket parts.
If it sounds like "swish-swish" noise, that is nornal for your bike. HD changed the front brakes in the 90's and the result was better stopping performance but there is that darned swishing sound. Don't worry about it, mate, there's nothing wrong with your bike.
Now, if you start to hear squealing when you pull the lever, take the bike to a shop to have the brakes pads replaced. If you feel vibration when you apply the brakes, take it to a shop immediately and have them check the wheel spokes for tightness.
I am thinking that you need to change the fluid and replace the brake pads. Over time brake fluid attracts water and it states in the manual that brake fluid should be changed. I change fluid in mine every other year.
The bike has a bent shift for or two. The engine will need to come out of the bike and get a complete teardown. A shift fork moves a "slider gear" left and right on a shaft. Both sides of the slider gear have "dogs" that engage into the side of an adjacent gear. This is how the different gears are engaged. A bent fork will not slide properly or engage properly. It is a costly repair. Note that if the inspection reveals a broken gear tooth, the smooth shaft that the shift fork slides on could be bent, and/or the gear shafts could be bent as well. Can I get a “very helpful” rating on this answer?
Now that you have bled the brakes and everything seems okay, try pumping the brake lever many times while the bike is stationary. Do the brakes build up pressure and not release? If everything still seems okay after you do that I would take the bike for a ride around the neighborhood. Stop every few minutes to make sure the disc isn't heating up indicating the brakes may not be releasing properly.
If the master cylinder is working properly, when you pull the brake lever fluid is pumped into the brake line. This forces the brake pads against the brake disc, stopping the bike. When you let off the lever the fluid is allowed back into the master cylinder. If the cylinder does not release the fluid it could put a quick end to your riding. I would not be comfortable letting someone ride this bike very far until I took the master cylinder apart and satisfied myself that it was problem free.
I have the same problem with my Roadking except it wasnt dropped. I did a full alignment of rear tire to engine, aligned the rear tire to front tire, aligned the engine and replaced the front motor mount. Nobody seems to have an answer, that I've talked to anyway. If you find a cure let me know, If I find one I'll let you know.