Search results

  1. Dukedog

    mercury blackmax 150 power/wot problems

    if moving tha idle timin' screw doesn't change tha idle rpm then ya may have a trigger problem.... thats tha only thing that (supposed to) control tha idle speed/rpm................
  2. Dukedog

    Mariner 200 efi 1992 oil hose?

    (y)
  3. Dukedog

    Mariner 200 efi 1992 oil hose?

    that "t" is a pressure relief valve.. that is tha vent side.. i've never seen one that has had to release pressure....
  4. Dukedog

    Mariner 200 efi 1992 oil hose?

    no where... its fine..
  5. Dukedog

    charging help

    got ta have a battery hooked up if wanna complete ANY 12 volt pos/neg circuit...........
  6. Dukedog

    charging help

    has ta have a battery .........
  7. Dukedog

    Mercury 200 2.5 EFI

    at least year of motor??.. no fire any plug?.. lanyard kill switch pulled (we've all done it)?.. kill circuit test first.... then ign. in-line fuse..
  8. Dukedog

    1984 mercury 150 blackmax timing/ link and sync procedure

    not supposed ta be... gap is at idle with everything at rest... idle stop is used for tha lines .. has nothing ta do with carb linkage
  9. Dukedog

    1984 mercury 150 blackmax timing/ link and sync procedure

    don't worry 'bout tha gap between tha roller and tha cam.. as long as ya have a slight gap and lines line up it will work jus fine.. i've run as much as 3/8ths of an inch gap on some of my hot rods over tha years......
  10. Dukedog

    Mercury 135 not running

    sent... study it then decide what ya wanna do...,... yes ya can jus change power heads if thats what ya end up wanting ta do...
  11. Dukedog

    Mercury 135 not running

    (y)
  12. Dukedog

    Mercury 135 not running

    (y)...... still has ta come apart. send me an email addy and i'll send ya an oem manual for it (PDF file)..................
  13. Dukedog

    Mercury 135 not running

    you need ta take it apart ta find out whats up....
  14. Dukedog

    Looking for the right tach harness from controls to tach?

    jus for info... plug should have 5 pins.. colors should be: blk... ground pur... switched hot gray.. tach sig. tan/blue... warning buzzer/beeper brown/wht... trim gauge should be a loose tan at tha harness also.. its for a temp "gauge" if your motor has tha sender.....
  15. Dukedog

    Looking for the right tach harness from controls to tach?

    (y)
  16. Dukedog

    Looking for the right tach harness from controls to tach?

    purple for power.. blue for light.. black for ground.. gray for tach signal... everything but tha gray can be picked up at any of tha other gauges..
  17. Dukedog

    200 EFI remove advance modo

    someone over heated tha thing reason gear went south... why tha "forged" pistons?.. they need extra attention when used.. tolerances and such.. warm up is very critical with those.. especially in steel sleeve motors.. not necessary unless ya plan on turning tha wick way up.. 7500 or more...
  18. Dukedog

    150 mercury black max

    check here for a build date stamp.. its there but may be hard to see... thats tha timin'/throttle arm on port side.... also check welsh plug for a serial number.. it looks like a "freeze plug" top of block behind tha flywheel.... pictures of powerhead would also help with what it actually...
  19. Dukedog

    Is switching to Aftermarket reeds worth it?

    these are a coupla more choices.. we like these better than boyesen.. https://bansheesuperstore.com/product/tdr-reed-set-for-mercury-5-petal-cages-100/ https://chriscarsonmarine.com/product/sport-outboard-reed-135hp-200hp-1976-1995-v6-5-leaf/
  20. Dukedog

    Is switching to Aftermarket reeds worth it?

    tha only thing you can do ta idle is tha timin'... all wh (used on all merc V6's from '76 ta '90) series carbs have an idle circuit that is not adjustable.. its either jack with timin" or change idle "air" jetting.. reeds are justa choice.. most change 'em looking for performance gains which...
Top