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1997 mercury force 40hp timing

S

stardeck

New member
I am going to check the timing on my 1997 mercury force 40hp pontoon boat. Can anyone tell me what the degrees btdc is? If needed, the serial # falls between OE203000-OE287999 as I don`t have the exact number with me right now.
Thank You
Joe
 
Last edited:
I have a '92 Merc 40 4 cylinder 2 stroke with 2 carbs and electronic ignition and I have the shop manual.
It states:
Idle RPM (600-700 in gear) 3-10 deg ATDC
Maximum timing 30 deg BTDC at 5500RPM
Throttle primary pickup 2 deg BTDC to 2 deg ATDC
Throttle secondary pickup 30 deg BTDC
 
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