I am in process of completing restoration of a 1973 BMW 2002 tii. In order to complete  this project and tune the engine I am requesting suggestions/ tech advice on how to sort out the Kugelfischer Fuel Injection System. The issue at present is the motor runs excellent upon start up, however after reaching operating temperature. The engine proceeds to increase fluctuating  RPMS from 750 to 4500 then quits running and  will not start until temp is reduced to cold. This car has been seen by various "old school BMW techs" for the past few years and they say " I have never experienced this situation in all my 40 + years" after that the situation is "mox-nix" Instead of throwing in the towel I am determined to hopefully locate an experienced tech that can tame this beast"   I live in Colorado and would prefer a knowledgeable and competent "old school BMW tech" located in the general vacinity.  CHEERS ... View more