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  1. Dukedog

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    QBhoy i gotta disagree with ya on tha oiler.. merc kept tha basic design around for over 21 years so ta me thats not a bad design.. tha main reasons for failures was/is ta poor maintance and/or over heat of tha motor which weakens tha ring gear. so ta me generlizin' tha thing as a whole is not...
  2. Dukedog

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    motor tank..."T" with one bib thats open.....
  3. Dukedog

    1985 Black Max 150 Hp Leaks oil out of reservoir cap. I replaced the cap and still leaking.

    there is a 4 psi check valve that could be bad also... its tha "T" fitting right ahead of tha tank cap
  4. Dukedog

    1989 Mercury Black Max 175hp outboard Starter bolts torque specs

    tha "exact" number from tha service manual is 17.5 ft. lbs... we didn't use a torque wrench on those much anyway... no ona shop.. jus been at it with tha 2.0, 2.4, 2.5 V6 merc from 1976 to 'bout 2008... mostly hot rods. send me an email addy and i'll send ya an oem manual (pdf) that will cover...
  5. Dukedog

    1989 Mercury Black Max 175hp outboard Starter bolts torque specs

    17/18 ft. lbs.......... we went around 20 most of tha time.. easier ta remember.
  6. Dukedog

    Mercury 200 EFI rough idle and small loss of top speed

    before we got tha harness we use a coupla needles inserted into tha wire itself... think its between tha tan/? and orange???.. long time ago, not positive on those colors.. sure someone else on here will know that for sure...
  7. Dukedog

    Mercury 200 EFI rough idle and small loss of top speed

    start with TPS (good chance this is tha problem)... also tha temp sensor on port head....
  8. Dukedog

    mercury keeps fading

    when it starts losing power push tha key in.. also try pumping tha bulb under same scenario.... if that changes anything then ya may have a mechanical fuel pump or blub problem.....
  9. Dukedog

    No power to trim or motor

    ......................
  10. Dukedog

    1992 2.5 offshore tach hookup

    (y)
  11. Dukedog

    1992 2.5 offshore tach hookup

    merc harness, both boat and engine harness will have wiring for a tach.. it will be a gray wire for signal.. from reg/rectifier to tach...... copy and paste tha below in your address bar and enter... it will ope a pdf that has all you will need...
  12. Dukedog

    Mercury Sport jet 175 not running/water in cylinder

    tha longer it sets (stays together) tha deeper any surface rust will get......:oops: jmo.
  13. Dukedog

    1992 2.5 offshore tach hookup

    tha merc stuff should have it!... what harness and controls are ya workin' with?.. motor year?
  14. Dukedog

    1992 2.5 offshore tach hookup

    should be a gray wire under tha dash.. tha other end should be plugged into a gray wire on one of tha rec/reg..... thats tha "signal" circuit... did tha boat not come with a tach or are you jus now adding one?
  15. Dukedog

    Rewiring Quicksilver Controller

    it is.....
  16. Dukedog

    Rewiring Quicksilver Controller

    copy and paste into tha "address bar".. tha one that usually starts with www or https:// when ya have a page open....... it should be blank when open a "new page"....
  17. Dukedog

    Rewiring Quicksilver Controller

    download this manual and go to page 2D-18.... ya gotta copy n paste.. wiring and colors are tha pretty much generic on all mercs no mater what hp and/or year after about '79............. till tha 16 pin showed up...
  18. Dukedog

    1980 Mercury 150 V6 Fuel Issues

    if carbs and fuel pressure are right you should not see any accumulation of any fuel mixture in tha throats other than a slight residue no mater what tha humidity. might check tha reeds.... it has 143* stats so that should be good.. if you don't have an over heat warning buzzer ya need to fix...
  19. Dukedog

    Yet another V6 Merc question: voltage regulator?

    surprised its still available.....
  20. Dukedog

    1980 Mercury 150 V6 Fuel Issues

    first thing ta do is junk tha seloc... its worthless.. look on ebay for an oem manual for your motor..................
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