Front brake howls...

[katmol]

At slow speed or while pushing it the front brakes on my 1975 XS650 makes a howling sound. Is not realy a squeal but a lower sound. What do I need to do. Pads, flush the system, bleed the lines..?

Thanks

 

[angus67]

sounds like your caliper is accumulating pressure, and not letting go. Or your pads are old, and skipping along the rotor. you may need to rebuild or buy a new mc. The pressure return portin the mc could be blocked. You could try backflushing it, to run fluid the other way with a mighty vac. gggary knows a thing or 2 about mightyvacs.

 

[gggGary]

Who me? But yeah an R&R of the whole front brake is the smart course. after 40 years the OEM parts don't owe you anything.

pistons sticky in their bores would be high on my list of suspects.