21st Feb 2016, 22:30
It's probably the master cylinder piston is gummed up or caliper piston is gummed up. If the brake lever is staying pulled in, it is the master cylinder piston. Sometimes you can clean the gunk out and it will work fine, but you will probably need rebuild kits.
25th May 2023, 12:12
Had the same problem. Flushed all the brake fluid and replaced with new and it was perfect.
1st Aug 2015, 15:07
Bleed the brakes.