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View Full Version : Mercury EFI "in gear" timing clarification ?



H2Okie
05-28-2018, 09:17 AM
I have read a lot of information from various sources on setting the in gear timing on Merc v6 EFI motors . The info seems contradictory depending on who's writing it . Some say to adjust the timing 0-8 deg ATDC and later adjust the idle air screw to get 650 RPMs in gear while others say to just adjust the timing in gear to get 650 RPMs and leave the idle air adjustment alone .
Is this just a case of 6 of one and half a dozen of another or adjustment depending on preference ?