15-03-2017, 06:55 PM
Try removing the pistons dust boot, take the piston out a bit and use a toothbrush or similar to clean around it, then wind back in and replace boot. Sometimes small amount of debris gets in there and causes sticking.
![[Image: 20120704_212316.jpg]](http://i789.photobucket.com/albums/yy175/DanHargrave/20120704_212316.jpg)