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  1. R

    am I missing something?

    I am having problems with my 1987 Mariner 45 pumping water. I have a new impeller, upper and lower housings. My question is, the top housing where the water tube goes into, is there some type of seal or washer that goes into the top of the housing? Or does the housing just narrow done onto the...
  2. R

    Mariner 45 - testing switch box

    I am trying to test the switch box. I admit I am not sure how to do it. I am using the CDI troubleshooting guide. I am trying to test the DVA. I read somewhere that when testing a stator, if you multiply the reading by 1.41 you will get the peak AC voltage. I put the red lead on the blue wire...
  3. R

    no spark

    I have a 1987 Mariner 45hp. I do not have spark on any cylinder. I used an analog tester on the switch box. on the right (power in side) I was getting 70 volts on the black and yellow wire. I got 32 volts on the other 4 wires. The left side (power to the sparkplugs) all 8 posts were dead. I was...
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