So I put on new pads on the grizzly that was fine I got the front in and bleed and it works great. I did the rear and couldnt get a firm lever. So I ordered a master cylinder rebuild kit. still no firm lever. I installed a seal kit in the left rear caliper. Still no firm handle. I pinch the line after the master cylinder to see if it is working and the lever gets firm so the master cylinder should be good right?
I pinch the rear brake line on the left caliper with the new seal kit and it is firm handle.
I pinch the rear line on the right side and it is spongy. So the left rear caliper has to be the issue.
I just installed a seal kit in it and the piston slid right in with no force. I have ran plenty of brake fluid through it by gravity and by squeezing the lever, opening bleeder, closing bleeder and then releasing lever and repeating.
Any advise on this thing?