Honda CB750 Front Brake Caliper Refurbishment | Motorcycle Brake Rebuild | Part 23

In this Honda CB750 project bike episode, I rebuilt the front brake caliper on my CB750 build. I am building this bike to be a road-going runner, not a full restoration, so I am giving it what it needs rather than aiming for perfection. As I have mentioned before, a working front brake is essential for my health and happiness :)

Here's what I used in this video:
Red Rubber Grease: https://ebay.us/Blydfz
Brembo DOT 4 Brake Fluid: https://ebay.us/XOl6z1
EBC CB750 K0-K6 Brake Pads: https://ebay.us/ZglFDC
Goxawee die grinder rotary tool: http://ebay.us/qYyEoZ​
Wire Brush: http://ebay.us/VjE0ns​

Although very seized and covered with corrosion, this caliper cleaned up quite well. It doesn’t have any damage to any of the important parts, like the threads or seal seats.

I have used a new piston as well as a new seal. I always use red rubber grease to build up calipers. I used to dip it all in brake fluid as a lubricant, but that risks damaging any paintwork it touches, so this is a lot less risky.

I bled the brakes using the traditional method of; get some pressure in the line by pumping the lever and holding it; then open the bleed valve; let the brake fluid and air out; close the bleed valve; then release the lever; repeat. I have tried using a syringe to backfill the system, but I haven’t been overly successful with it yet!

Although I do get pressure in the system and I am sure that all of the air is out I am still not completely happy with the front brake, so I will have to investigate further.

For more helpful how-to guides and restoration project logs, visit our blog: https://www.spannerrash.com/

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