Mercury Optimax 75, 90, 115, DFI starting year 2004 service manual., Page 140Get this manual
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TIMING, SYNCHRONIZINGADJUSTING
- Throttle armWide open throttle stopThrottle shutter armThrottle shutter stopGap 0.508 mm 1.016 mm (0.020 in 0.040 inWide open throttle stop screw