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  1. M

    mercury 2+2 check valves

    have an 03 Mercury 125 2 stroke. 2+2 These motors have 2 check valves that are connected to fuel lines that seem to run from the accelerator pump.The check valves screw into the block- one screws into where cyl 3 is located, and another right below into cylinder 4. Can someone tell me what...
  2. M

    Best manual?

    2003 merc 125 Saltwater 2 stroke. Can someone tell me what the best repair manual is to get ? Saw couple different ones. Or a good website where I can upload one? Any help or input appreciated
  3. M

    How to bench test regulator ??

    I've been searching everywhere trying to figure out How I can bench test my regulator. 03 merc 125 saltwater it has the 6 wire regulator (2 yellow, 2 red, black, gray. ) how would I test this with multimeter to make sure it is ok?
  4. M

    Mercury 125 spark issue?? Need some help!!

    2003 merc 125 saltwAter compression 120+ in all 4 cyls motor was getting about 4500rpms at about 30mph max. I have 17p 3 blade prop , 20ft sea fox dual console. put new plugs in, took for a ride up canal a couple times . Pulled plugs, and cyl 4 spark plug looked literally brand new. No color on...
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