1979 GS850 - Rear Brake issues

[emlivings]

I just got done replacing the Points ignition to the Dyna S Ds3-2 system.
The bike rips now which is a great thing.


However, another issue cropped up. My rear calipers were on fire due a slight seizure.

Looking to replace the rear rotors and caliper. Maybe i can get an OEM replacement off EBay but i think i may need to either get my rotors turned or get a aftermarket replacement. Thoughts?

 

[Nessism]

Full system teardown time. Master cylinder, caliper, replace brake line. And lube the physical brake pedal pivot bushing. Replace any corroded parts, like caliper pistons. Also recommended, replace the caliper and master rubber parts.

This may not be what you wanted to hear, but it's the proper answer to a lasting and reliable brake system.

 

[Grimly]

I just got done replacing the Points ignition to the Dyna S Ds3-2 system.
The bike rips now which is a great thing.


However, another issue cropped up. My rear calipers were on fire due a slight seizure.

Looking to replace the rear rotors and caliper. Maybe i can get an OEM replacement off EBay but i think i may need to either get my rotors turned or get a aftermarket replacement. Thoughts?

That blasted rear caliper loves to sieze up just for fun, if it's neglected for just long enough - and ideally it should be rebuilt every decade or so.
Hands up all who never do theirs? I thought so...
Anyway, found out the hard way that it's easy enough and once done is good for another decade at least.

 

[emlivings]

Full system teardown time. Master cylinder, caliper, replace brake line. And lube the physical brake pedal pivot bushing. Replace any corroded parts, like caliper pistons. Also recommended, replace the caliper and master rubber parts.

This may not be what you wanted to hear, but it's the proper answer to a lasting and reliable brake system.

I ordered an OEM caliper off of ebay. brake lines would be an easy fix.
Any recommendations if i wanted to go after market for some of these parts in the future?

 

[Nessism]

Partzilla shows most of the seal parts, for both the master and rear caliper are available. I'd do a teardown so you can inspect everything. Don't buy used parts of unknown condition off Ebay, before you evaluate the parts you have already.

https://brakecrafters.com/collections/1979-Suzuki-GS850G

https://www.partzilla.com/catalog/suzuki/motorcycle/1979/gs850g

 

[emlivings]

Partzilla shows most of the seal parts, for both the master and rear caliper are available. I'd do a teardown so you can inspect everything. Don't buy used parts of unknown condition off Ebay, before you evaluate the parts you have already.

https://brakecrafters.com/collections/1979-Suzuki-GS850G

https://www.partzilla.com/catalog/suzuki/motorcycle/1979/gs850g

Thoughts on Niche rotors? My OEM rotor is shot. from the heat.