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  1. Dukedog

    Mercury 175 EFI Boggs down under load

    swap switch box leads from 1 with either 3 or 5.. see if fire fire pattern follows? sounds like a coupla switch boxes are in ya future.. maybe stator also.. wouldn't worry 'bout plugs.. i can say i've never had a surface gap plug go bad with any merc...
  2. Dukedog

    Mercury 175 EFI Boggs down under load

    do ya have access to another gauge?.. 90 lbs is tired/low.. how are ya testin' comp?
  3. Dukedog

    1991 Mercury XR4 low rpms at WOT

    1.87 gear? has it been changed?
  4. Dukedog

    Mercury 135 Blackmax

    something is wrong with middle carb.. tha feed for carbs go through each carb from top to bottom.. if its before carbs it would effect all three..
  5. Dukedog

    Serial number not showing up

    is Crowly Marine NOT a dealer???.. pretty sure tha numbers were into tha "B's" by '85........
  6. Dukedog

    Serial number not showing up

    serial number 0A104245 shows this as a 1980 yamaha built merc/mariner on this site.. https://www.crowleymarine.com/mercury-outboard/275.cfmshows this
  7. Dukedog

    Stator?

    something ta consider with tha new reg/rectifiers if they have tha bullet connectors... best if you cut those off, solder and heat shrink tha joints.. tha bullet type are known for a heat problem........... jmo.
  8. Dukedog

    No fuel Seen- 94' Black Max

    anytime you disassemble anything/part fuel related it needs NEW gaskets no mater what they look (still good or bad) they need ta be replaced with new... tha enrichner has no bearing on pressure.. yours is mounted right.. lines on top......... manual sent... let me know if you get it.
  9. Dukedog

    No fuel Seen- 94' Black Max

    send me an email addy and i'll send you an OEM manual in pdf.. tha seloc is jus good enough ta get ya in trouble.....
  10. Dukedog

    Water temperature coming out of the pee hole now what I'll do here

    yeah, tha only carbureted 2.5 150 is tha XR6... on the starboard head right below tha top spark plug (no. one cyl) there is a sensor. should be a tan/blue wire (probably ina plastic sleeve) coming from it going to a terminial with a coupla other tan/blues.. take a short (or long) jumper with...
  11. Dukedog

    Water temperature coming out of the pee hole now what I'll do here

    unless it is an EFI or XR6 its gonna be a 2.0 motor.....
  12. Dukedog

    Water temperature coming out of the pee hole now what I'll do here

    t-stats open around 140ish ta 150ish.. good water pressure?.. no over temp alarm, then wouldn't think twice 'about it.............
  13. Dukedog

    Mercury V6 fuel flow from all carbs

    this............... and new gaskets are a must no mater how good old ones look..
  14. Dukedog

    Stator?

    send me an email addy and i will send ya an oem manual (in pdf) that will have your motor in it....
  15. Dukedog

    Mercury Black Max Problems

    when you say "cleaned" tha carbs did you use same gaskets or replace ALL gaskets with new ones?.. no mater how/what tha carb gaskets (inside and out) look like they need to be replaced with new when carb is disassembled for any reason...... jan.. all wh series (whats on your motor) carb gaskets...
  16. Dukedog

    1988 SeaRay Seville 135HP

    thats shifter linkage.. send me an email addy and i'll send ya manual.. its for different motors but they all work 'bout tha same.. parts are still called same names.. work same as your parts.. about tha only things that won't apply ta your motor are tha test value numbers on several (mostly...
  17. Dukedog

    1988 SeaRay Seville 135HP

    tha speedy pick up is a small hole in tha leading edge of tha gear case.. tha tube should go down inside tha steerin' arm.. it is tha over temp sensor wire but can't tell if its tha part that originates at tha sensor or if its tha part commin' from tha harness?.. either way they need ta be...
  18. Dukedog

    1988 SeaRay Seville 135HP

    if tha wire you are indicating is a tan/blue tracer with an eyelet is gonna be for over heat alarm.. its either tha one from tha harness or its from tha sensor on tha starboard head?
  19. Dukedog

    1988 SeaRay Seville 135HP

    tha tube by tha linkage is either for water pressure gauge or speedometer.. cant see colot of tha wire ya holdin'?.. looks like a brass plug under tha starter?.. can't tell for sure.. remote oil tank isn't that big.. maybe a gallon or two and doesn't have any wiring to it.. need picture of port...
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