Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 8Get this manual

Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 8

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SPECIFICATIONS

The fuelair differential must remain at 96.5 kPa (14.0 psi)If this differential is not maintained, the engine will exhibit poor running characteristics; i.e poor idling, sp