What are the individual warning lights in the Morgan +8 , 01.1997 for?
Greetings to you, riri!
This is not an exact sciencei.

Over time, the Morgan factory, mechanics and owners, switch around change these instrument cluster lights, their colours, their wiring, their light type and holders. After your car's 30 years, it is impossible to know what you have, Try this
https://www.gomog.com/allmorgan/DashLights.html. As you drive your Morgan, confirm what the lights mean and correct the wiring as you wish. Morgans of your era are very owner-friendly.
Lorne
1984 Plus 8
1990 Plus 8
2002 Plus 8