HELP!! Rear Caliper

[stuff4mason]

I am having a he77 of a time with the rear caliper on my 1988 250 TB. First off, the bike had no breaks when I got it. Cleaned out the master and discovered something was stuck in the oil hole. Finally got fluid down to all three calipers. The back brake is having issues. When you hit the brake lever, it compresses the cylinder, but will not retract. You can stick a screw driver between the pads and compress it that way, but it won't go back in on its own. Is this a bleed issue, or is the seals leaking air?

If its a bleed issue, can someone step me through how to bleed it correctly? If its a seal issue, does anyone make a rebuild kit for this caliper? I've searched and can find nothing on the net.

Please advise!!

Thanks Guys!

[tt425]

Try this. Fill it with fluid and loosen the bleeder screws it may have trapped air.Let it sit a little while and see if the air bleeds out. If no success, try this. If you have a spout cap like a gear oil bottle has put a hose on it and screw it on a bottle of brake fluid and attach the hose to the bleeder screw while it is open and have the master cylinder cap off and squeeze the bottle. Alot of times on vehicles you have to do that in order to bleed the clutch lines. Don't know if that will work on atv's but it works on vehicles. Let us know what happens. Good Luck