How can I check if my starter solenoid is working?

[Athame57]

Try as I might I can't figure out why my starter motor won't go, how do I check the solenoid is working?

[Bryanj]

Take the two small wires at the solenoid disconnect from loom and conect one to earth the other to battery +ve solenoid shoul click and starter turn if its connected

[mike the bike]

Use a spanner to short out the large terminals on the solenoid.  There will be a big spark when you do, so don't be put off.  This will prove if the starter motor is ok.