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  1. Dukedog

    What is Primary Pickup?

    you are on tha right path with "primary screw".. first make sure all butterflies are completly closed.. tha pirmary timin' screw is tha only thing moved to set your idle rpm/speed... tha real world way to set idle (primary) timing is as follows.. forget what book says for timin' numbers for...
  2. Dukedog

    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    so what are we lookin' for?.. can't see anything that might be a problem?.. ya might wanna get rid of tha idle stabilizer completely.. jus fab a white/black (bias circuit) jumper between tha switch boxes.. reset timin'
  3. Dukedog

    What horsepower is serial# 0g080810?

    pretty simple.. 25 is a two cylinder, 75/90 is three........
  4. Dukedog

    Harness issues

  5. Dukedog

    Harness issues

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  6. Dukedog

    Timing on 1990 Merc Black Max Carb 2 strk 175 - hope Fast Bullet weighs in

    "removed black and white wire from switch box according to manual which supposedly disconnected the idle stabilizer module" what about tha red/white??? don't think thats ya problem but ya never know.. sounds like ya have something not quite right but hard ta say ona computer.. for me...
  7. Dukedog

    Can't get over 2k on water

    sorry, can't help with tha 16 amp (your) stuff.. only oem manuals i have left are for tha 40 amp stuff and i sure don't trust my memory in this 'ole noggin' ta try ta explain it and its values you'll be lookin' for.... surely someone on here has all that information and can share it with ya.....
  8. Dukedog

    I cant find the correct manual HELP....

    looks like your type crank assy. (pic 1) started in '84 and ended in '90.. '91 up shows tha other design (pic. 2)................
  9. Dukedog

    I cant find the correct manual HELP....

    tha manual i listed is for an '84.. its tha first year showing your crank assy. this is number for a '90.. it also shows your assy. but may show a lot of tha special tools need ta work on this motor.. 90-878107R01 go here and check parts ta compare with your motor.... that should confirm tha...
  10. Dukedog

    I cant find the correct manual HELP....

    do you know tha year?.. may be this one?.. Service Manual 861355
  11. Dukedog

    Can't get over 2k on water

    sometimes it will show on jus tha resistance but better with a dva....
  12. Dukedog

    Can't get over 2k on water

    good for you!!! seen it many times.... now check stator if fuel delivery is good..
  13. Dukedog

    Can't get over 2k on water

    a "recently rebuilt" motor with comp that low is either one of two things.. wasn't done right (block, heads, piston, rings) and/or tha comp gauge is junk..... one reason for low rpm may be stator.... if it runs and idle's smooth but jus won't turn any more rpm.
  14. Dukedog

    Mercury year and hp help

    1998 Outboard 50 [ELPTO] 1050412UD
  15. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    Chris, his is tha old oblong style.. mounts on tha reed plate on other side..
  16. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    yeah, i squealed like a pig under a gate first one i bought many (to many) years ago... it stings a little at first but tha OEM is well worth it.. tha other junk like a clymer is jus that, JUNK... jmo
  17. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    manual part #90-976583
  18. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    that looks like it was a complete drop on power head.. anything that old is gonna have some nicks n bruises... looks like a new stator and trigger?.. jus by tha way ya describe things you really need an OEM manual BEFORE ya start doin' things ya don't know anything about (no offense meant) to...
  19. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    ya gotta add a "0" in front of tha number... 06519974.. 1984 150.. so its a 1984 2.0 150.. cowls are too.......... as said before tha 0C267625 comes up as a 1990 200... so clamp and mid are a lot newer.................. start with carbs and fuel pump rebuild.. no mater how clean everything...
  20. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    0c267625 comes up as a 1990 200.. tha other number ya posted is a build date of feb 20 1984.. so tha power head has been changed.. got any pictures of tha power head? below is a pic of a welsh plug jus in case ya don't know what ya lookin' for.. its on top of tha block behind tha flywheel.. it...
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