1987-1993 Mercury Mariner Outboards 70/75/80/90/100/115HP 3 and 4-cylinder Factory Service Manual, Page 67Get this manual
11Hold throttle cam in full throttle positionIf necessary adjust acceleration pump adjusting bolts position so that gap of 0.030 in(0.762mm) exists between throttle cam and top of acceleration pump aluminum housing CARBURETOROIL PUMP SYNCHRONIZATION IMPORTANT: Some engines may have an additional stamped mark (d) which SHOULD NOT be used1While holding throttle arm at idle position, adjust length of link rod so that stamped mark of oil pump body aligns with stamped mark of oil pump lever2Move throttle arm from idle to wide open throttle while checking link rod for any interference with hoses, cable ties, etc
Throttle Cam Bolts 0.030 in(0.762mm) Gap Accelerator Pump