Posted By: Bar-D
ATV Brakes Locking Up - 08/23/16 08:44 PM
I have a Yamaha 350 Bruin 2WD atv. The front brake calipers are not releasing and will lock up by their selves sometimes when just sitting, not running. The only way to get them to release is loosening the brake line at the reservoir and bleeding a little pressure. They immediately release but will soon lock up again. I have flushed and changed the brake fluid, disassembled and cleaned the calipers and installed new o rings on the pistons. I worked for two days to make sure all the air was bled out of the system. After all that they worked OK for about a week and it started all over again. Anyone have any ideas?