My 560 sel starts very hard especially in colder weather or after it sits .
What is your question?
If you hit the air intake with a dab of either it starts and runs perfect. Also starts great after warmed up, it seems to have low fuel pressure on cold starts
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Fuel pressure is very low if any until the motor really gets cranking or engine is warm then it is fine. Waht would correct that situation?
a new fuel pump