Motorcycle Repair: sticking brakes, caliper pistons, shively

Question
alanbarron1@hotmail.com
I OWN ZZR600E 1995.I HAVE REPLACED BRAKE LINES WITH GOODRIDGE BUT MY CALIPER PISTONS ARE CONSTANTLY STICKING.I HAVE REPLACED PISTON RUBBER SEALS.THE PISTONS SEEM NOT TO BE RETURNING ON BRAKE RELEASE.any help please

Answer
Hi Alan,

Were calipers and pistons thoroughly cleaned?

It's not uncommon to have to scrape the gummed or crystalized brake fluid from the seal's groove surfaces. Also, dress piston surfaces to remove imperfections and debris.

I'll send tech files to your email.

Respectfully,
Mark Shively