Where is the ignition serial number on a 1982 suzuki gs1100 I lost my key and I need to get another one but I need the serail number on the ignition switch?

Hi, the key code on on the alloy block the key barrel fits into. the block is held on by 2 allen bolts, remove these and take the ign switch block out. when you look at the block you will see a square pin on the side of the block and around that surface you will find the 4 digit pin. i suggest you use paint stripper to remove the paint if the number is not visable. DO NOT USE ANY WIRE BRUSHES, just some q-tips and a rag.

goodluck