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Q: car wont start on 1990 BMW 750iL

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
this v12 has 85,000 mi and sat for a couple years it did run out of gas once and just had the battery changed. when it cranks it sound like it jumped time. do these engines go through timing belts/chains this quickly?
(1) Answer
that's not the problem most likely its the fuel pump, if you don't run Super fuel the pump will gum up if it sits for a long time. i cant tell you how to fix it if you still need to.