Search results

  1. Dukedog

    XR6 to EFI

    tha XR6 and 2.5 efi rotating assembly are tha same.. front half and block half of both 150's are tha same.. you only need ta change tha reed plate to tha efi reed plate (reeds are same also) as for any any "block" assembly parts are concerned.. tha rest is "bolt on" efi parts.. ie: efi assy...
  2. Dukedog

    Help Identifying Mercury 3.0 250HP

    check your ECU numbers.... your power head is definitely in tha 0G range.. gear cases may have been replaced somewhere down tha line.....
  3. Dukedog

    Mercury/Mariner Blocks Interchangeable?

    ya need ta check out tha crank shaft splines... that looks bad enough ta mess those up to... might need ta change out crank.. wouldn't worry with anything else.. all 2.0/2.4/2.5 (carb, efi, opti) gearcases will interchange.. only difference will be in gear ratio's......
  4. Dukedog

    Mercury XR 6 question

    yeah, thats tha way it does after tha motor is warm.. doesn't effect it much when cold.. takes a lotta fuel ta start a "cold" motor.. not so much after it warmed.
  5. Dukedog

    Mercury XR 6 question

    see this post.. same applies to ANY of 'em.. mech. fuel pump is a known culprit with issue you are having... https://forums.iboats.com/threads/1998-mariner-200hp-2-stroke-starting-and-idling-issues.739696/
  6. Dukedog

    Mercury low oil

    set for that length of time creates a lotta reasons it won't do things its supposed to... yes, you should get an alarm.. do you get tha three (sounds like two dots and a dash) self check beeps when you turn tha key on? pre mix fuel and oil (50 ta 1) in remote tank till ya get it runnin'...
  7. Dukedog

    Mercury low oil

    oil and/or oiler stuff has nothin' ta do with it startin'.... it will start without any oil what so ever if tha rest of tha motor is ok... not keepin' motor tank up ta snuff can be 'bout 3 things.. dirty screen in bottom pick up of main (in boat) tank.. pulse valve (right below tha starter)...
  8. Dukedog

    Mercury 150 serial number?

    ya might wanna figure out what ya got first.. different gear ratios.. 2.0 motors have 2 ta one.. 2.4/2.5's most have 1.87 ta one except XR4 and some XR6's have 1.78 ta one.. Make sure it doesn't have a pre-load pin stickin' out tha top of drive shaft..... although they all will bolt up.
  9. Dukedog

    Mercury 150 serial number?

    there should be a "double letter" stamped on tha flange also.. it will tell what motor it is (150 etc.) yours looks ta be "FF".. will be a 200
  10. Dukedog

    Mercury 150 serial number?

    yeah.. not all have it there.. if not there or on tha port side block half flange its probably a replacement powerhead.. they don't get a serial number.. it will have a production date on it though so you can verify year.. it will be on tha flange or at tha base of number 2 cyl. on tha block...
  11. Dukedog

    Mercury 150 serial number?

    at the very minimum its' a '91 or newer (block design).. i'd venture ta say its later than '91 'cause tha carbs do not have external pumps on 'em.. might check here for serial number (pic below).. some do and some don't have it there?.. looks ta have an FF stamped on block half?.. there should...
  12. Dukedog

    1998 Mariner 200HP 2 Stroke Starting and Idling Issues

    jus somethin' ta check it out.. a leaky (inside) mech pump won't bother a cold motor start and run.. will run jus fine off idle, wot.. starting and idle different story with a warm motor...
  13. Dukedog

    1998 Mariner 200HP 2 Stroke Starting and Idling Issues

    efi or carb motor?.. i'd do a mechanical fuel pump kit first.. easy and cheap ta do...
  14. Dukedog

    Help identifying a mercury black max

    wasn't payin' attention and didn't see that was tha date on tha starter but its probably right.. in tha picture below it shows where therewill be an actual "build date" stamped on tha block itself.. it may be really hard ta see but its there.. its on tha port side block half (back half of tha...
  15. Dukedog

    Mariner magnum 3 150HP....temp sensor

    this is install of tha "water temp" sensor but on wrong side.. needs ta be same place but on "port" side...... pressure gauge tube will go in tha hose that starts on top of block and goes down to tha poppet cover on starboard side.. you will need to use a "T" fitting at tha top of that hose...
  16. Dukedog

    jet size in WH 30? idle and main?

    resources have dried completely up on this one... its one of tha very few V6 merc carbs i have no information on other than it came on tha 175... really need "factory" jettin' for it... reason for concern is that there is one 175 WH series out there that uses a .070 idle (not a mis-print) but...
  17. Dukedog

    1997 Mercury 150a

    there is something really outta kilter with that motor... that chargin' system went away in '89 'cept for some 135's.. WH series carbs went away in '90.. tha heads, from what I can see, look ta be earlier pre lost foam ('88) 2.0, 2.4 style.. may even be first generation motor?.. can't really...
  18. Dukedog

    92 Mariner 150 voltage regulator and more question

    usually a build date stamped here, on tha block, kinda behind tha bend in tha advance arm... might be very "faint" like these, but will be there serial number here usually, but that term is us used "loosely".... these need ta be a "sticky" for tha V6 crowd....
  19. Dukedog

    "evinrude20" (screen name)

    evinrude20........call me. cant type much now. plus terrible site issues with pm's....... anytime........Edit: Sorry Duke, but you know we can't have personal information on open forums. Keep trying the PM's, they should be working. I have been using the PM system ever since the new upgrade with...
  20. Dukedog

    picture on threads. May or maynot be there?

    No Title Understand 'bout tha upgrade deal. Just makin' sure your aware of it. No big deal I'm sure you'll get it all goin' soon. Usually get on here daily. TEST!
View older results
Top