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  1. Dukedog

    Mercury 150 not performing well under load and drinking gas.

    manual part #90-976583
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. 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 if oiler is no longer active/used, why would you replace tha module???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...
  7. 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...
  8. Dukedog

    Identify My Mercury

    YOUR MOTOR.... 0G818101 https://www.crowleymarine.com/mercury-outboard/3236.cfm?mdl=RCFEJD&q=0G818101
  9. 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...
  10. 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....
  11. 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.........
  12. 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.
  13. 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...
  14. 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.
  15. 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...
  16. 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...
  17. Dukedog

    1989 mercury 150 black max xr4 oil issue

    it would lead me in that direction but cannot say by justa computer conversation....
  18. 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...
  19. 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?..
  20. Dukedog

    Engine ID

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