Easy peasy. If it's a 93 then you should renew the heat sink compound behind the ignition amp. When that gets old the ignition amp gets too warm and impacts performance.
The ignition amp is located on the front left of the lower battery tray.
1 - Remove the ignition amp.
2 - Sand off old heat sink compound.
3 - Apply new heat sink compound.
4 - Reinstall.
Note: This only applies to 4V K (K1100, K1, K100RS4V) 93 and earlier. 94 and later K1100s do not have the ignition amp.