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  1. Dukedog

    97 Mercury XR6 alarm problems

    tha only thing they share (oil/over temp) is tha buzzer.. they do not have any other association.. tha tan/blue coming from tha module is justa "signal" thats coming from tha module.. same as a signal wire coming from tha over temp.. they jus happen ta use tha same wire goin' to tha buzzer...
  2. Dukedog

    97 Mercury XR6 alarm problems

    what Faz says, "yes".. i'm kinda confused here.. you said "Tim Johnson and I replaced the temp sender, the temp sensor, and the alarm control module"?.. if oiler is no longer active/used, why would you replace tha module??? is it or is it not in operation?.. (oil injection)... that module is...
  3. Dukedog

    97 Mercury XR6 alarm problems

    could be... they will usually run bad if thats tha case.. that wire reads that post (usually number two) firing.. it calibrates between it and magnet (rotation sensor on top of oil pump) to module.. no fire or no rotation ya get a alarm.. thats how its SUPPOSED ta work but its not all that...
  4. Dukedog

    Identify My Mercury

    YOUR MOTOR.... 0G818101 https://www.crowleymarine.com/mercury-outboard/3236.cfm?mdl=RCFEJD&q=0G818101
  5. Dukedog

    Only getting spark in one cylinder

    "Make sure starter RPM is not slow"...... yep. "Coils rarely fail..espeicially 5 at one time"...... yep. my money is gonna be on one or more of these things.. trigger, stator and/or switch box (boxes)... ya need ta start testin' parts... if ya need an oem manual send me an email...
  6. Dukedog

    Cannot reinstall lower unit on 1990 150 blackmax

    tha only gearcase that should have any resistance in tha last 3/4 ta 1 inch IF EVERYTHING IS ALIGNED as it should be is tha early pre-load case period....
  7. Dukedog

    Cannot reinstall lower unit on 1990 150 blackmax

    first thing ta check is gearcase if your not sure its original.. could be an earlier pre-load case that got put on somewhere down tha line.........
  8. Dukedog

    Sport Jet 175 xr2 - low compression in one cylinder

    It is a V-6 power head.---Also indicated with 6 compression values posted.-----And those have always used head gaskets !!!!! this statement kinda says "all" v6's.. ta me anyway.. sorry if i misinterpreted.
  9. Dukedog

    Sport Jet 175 xr2 - low compression in one cylinder

    JAN.. the SJ V6 powerheads (175, 210, 240) all went ta o ring in 2000 along with production 2.5 V6's... doubt that any kinda "additive" is gonna help.. right now its jus showin' "weak".. may/may not be any damage.. it needs ta be LOOKED at to determine which it is... then you can devise a plan...
  10. Dukedog

    Sport Jet 175 xr2 - low compression in one cylinder

    if your mechanically inclined ya might wanna pull tha head an take a peek at tha hole and piston.. could be tha start of something serious or jus a little excess wear.. would at least get a bore scope in it.... jmo.
  11. Dukedog

    1989 mercury 150 black max xr4 oil issue

    good idea... but you may still have a bad switch box if its down on power.. with all things right ie: gearcase, prop and motor height it should turn close ta 5800 or more on tha right hull.... not to familiar with cheeta.. what type hull?.. weight?.. may be a little short on hp for a 20...
  12. Dukedog

    1989 mercury 150 black max xr4 oil issue

    tha sensor itself is a magnet setting on top of tha oil pump boss.. it reads rotation of pump drive gear and coordinates a reading between it and tha firing of tha cylinder from tha switch box to produce a signal to tha module.. doubt its bad... some say you can move tha green coming from tha...
  13. Dukedog

    1989 mercury 150 black max xr4 oil issue

    it would lead me in that direction but cannot say by justa computer conversation....
  14. Dukedog

    1989 mercury 150 black max xr4 oil issue

    there is a green wire (rotation sensor) coming from tha alarm module going to bottom terminal of one of tha switch boxes along with another green going to one of tha coils.. disconnect it (module side) and test.. you may have a switch box going south.. this would explain it being down on power...
  15. Dukedog

    1989 mercury 150 black max xr4 oil issue

    do you get tha self test beeps when key is turned on?.. is tha alarm over 4200 oscillating beeps or a solid, continuous beep?..
  16. Dukedog

    Engine ID

    yes and yes.. tha "powerhead" itself is a '91 200, probably a replacement .. tha rest is earlier..
  17. Dukedog

    Mariner Mag II Oil Warning Module - bad?

    alrighty then!... sounds like bad module.. gl with it
  18. Dukedog

    Mariner Mag II Oil Warning Module - bad?

    "When I ground the tan wire from the Oil warning module, I get solid beep" is that with it separated from tha "other" tan on tha terminal block?
  19. Dukedog

    Mariner Mag II Oil Warning Module - bad?

    do you NOT get tha "test beeps" when key is turned on?... with key on ground tha tan coming from tha module to tha small terminal block after its disconnected from terminal block. if you get nothing or you get a solid beep module is bad............. tha module's sole purpose is to make a signal...
  20. Dukedog

    Mariner Magnum II / Merc XR4 Trim cylinders - should retract with motor down on tilt lock?

    i understand what ya askin' now.. ta tell tha truth even after all these years foolin' with this junk i really can't remember if tha merc stuff shoud or should not act tha same way??? 90% of my junk over tha years was usin' tha single ram stuff....
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