In between a handful of other projects for the SR250, I've been tearing down and refreshing the forks.

Getting them fully dissembled proved to be a difficult task, as there just isn't much information out there for this bike.

After gutting the piston of it's cap spring retainers etc, the next step is to remove the piston shaft itself.

This is where I got hung up, so here's how to do it:

1. There's an allen bolt at the base of the fork body. Get an allen key on that.

2. Down inside the piston shaft there's a female 12pt bolt head - size 14mm. This is what the allen bolt is threaded into. Loosening only the allen bolt at the base of the fork will usually result in this interior piece just spinning, so you're going to need to get a 14mm allen key on that piece also.

The expensive way to do this: H14 allen key socket on a 12"+ extension

The cheap way to do this: Weld or screw on a 14mm nut to the end of a threaded rod. With the screw method you'll need 2 nuts to lock them. Bend the other end into a handle.

Here's what that interior piece looks like, with a H14 allen socket in it: