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Type: Posts; User: Martinm

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  1. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Any ideas Jeff?
  2. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Is there a way to check the fuel pump without having to replace it?
  3. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have checked the spark while running with an in-line tester, spark doesn’t drop off when it misses. I have re checked the compression and come out level on al 3 @115psi, I have taken out the spark...
  4. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have changed the reed valves, it seemed to run better the first time I ran it. The second time I am getting the miss again :( what do you think is the next option going forward?
  5. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    New reed valves ordered should get them in tomorrow, thought I best had seems I have the unit off
  6. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have found on number 1 cylinder 3or4 valves with daylight coming through when a torch is held behind it. From first inspection with the ***** eye they look ok but when using light behind it there...
  7. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have them off, didn’t realise they have two plates stacked together
  8. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have taken the plate off and can see the valves from the front side, how do I know if they are seating correctly? Do I have to take off the whole unit behind?
  9. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Reed valve
  10. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Yep triple carby, will try and find the reef valve
  11. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Changed the stator and timer, new carburettors and used a donor CDI , no change still have a miss at mid revs. The only other things I was think were all 3 coils or the fuel pump? Or just scrap the...
  12. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Cheers Jeff
  13. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    I have performed a peak voltage test on the stator today, it is good on the low rev side(blue). When I tested the high rev side (red) the volts were nearly double what’s recommended... It is...
  14. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Gave the carby’s a thorough clean today and no change ☹️
  15. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Will do that first thing Monday...
  16. Re: 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Yep sorry changed tanks and added water separator to fuel line.
  17. 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Went out the other week and cruising on the plane the engine cut back to almost an idle, having to limp back to the marina.
    Thinking it was a fuel line issue I initially changed the fuel line from...
  18. 1995 Mariner 50hp 3Cyl Engine cutting back to idle from full throttle

    Hey,

    I am new to the forum and seeking some help with my 50hp Mariner.
    The issue: Took her out a few weeks ago and up on the plane cruising, then with the throttle fully forward the engine cut...
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