Hola Kati and Tobi,
so you made it to Bamako, huu you must have come a long way in Africa, congratulations.
Sorry, I cant point you to a mechanic in Bamako, but maybe somebody else on this forum can. Bamako - as I remember it - is not the place to have somebody working on your engine, but hopefully you will find somebody or do it yourself (with the help of KEDO and the forums) if you find a good workshop to get started yourself.
One more thing, I just read the news and it mentioned some kind of military action/ fighting in Bamako. Please get informed what is going on, and take care.
Saludos de Bolivia