Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: 1992 60hp Johnson issue

  1. #1
    Has all the answers

    User Info Menu

    Default 1992 60hp Johnson issue

    Hey guys and gals....been awhile since ive posted but here is my issue....I have the above engine on my boat and everytime i put in the water and throttle up to full speed the engine will slow down to a fast trolling speed and continue at that speed for about 15-20 min and then take off like a rocket and be fine for the rest of the day....it idles smooth, never bogs down and no hiccups in the sound of the engine running....compression is good ....im thinking it may be a relay of somewhat or something electrical not the fuel as it runs very smooth.....thanks

  2. # ADS
    Advertisement
    ADVERTISEMENT
     

  3. #2
    Post-a-holic

    User Info Menu

    Default

    Almost sounds like the high speed orifice is partially plugged.
    Have you tried using some Sea-foam mixed in the gas & fogging the carb with Sea-foam.




    _____________________________________
    Living proof that "beer builds better bellies".

  4. #3
    Has all the answers

    User Info Menu

    Default

    No I have not as I dont think its a fuel/carb issue as the motor runs as smooth as can be .....idles perfect.....

  5. #4
    Post-a-holic

    User Info Menu

    Default

    If fuel is getting through the low speed orifice fine it will run smooth at low speeds.
    When you speed up the high speed orifice opens up. If there is a restriction here the motor will not jump up to speed but run slowly.




    _____________________________________
    Living proof that "beer builds better bellies".

  6. #5
    Mod Squad

    User Info Menu

    Default

    I have the same motor but its the Evinrude version. I've had a ton of issues with air leaks at various locations in the fuel line. Normally this lets you run at trolling speeds but it would die out at higher speeds. I'd spend half my time on the water squeezing a soft primer bulb. So this could be a place to look.

  7. #6
    Has all the answers

    User Info Menu

    Default

    been there done that....bulb hard not starving for fuel

  8. #7
    Getting the hang of it

    User Info Menu

    Default

    I have the 1988 version of the 60 HP. I run only premium gas without ethanol in it and add sea foam to every tank. When you get your premium gas, (Canadian Tire sells premium without ethanol) pump the first 10-12 litres into your car then fill your boat gas tank or jerry can. If the last person to use the pump, pumped regular gas then the first 10-12 litres already has regular gas in the combined piping system.
    Rick in Muskoka

  9. #8
    Has all the answers

    User Info Menu

    Default

    Quote Originally Posted by Rick in Muskoka View Post
    I have the 1988 version of the 60 HP. I run only premium gas without ethanol in it and add sea foam to every tank. When you get your premium gas, (Canadian Tire sells premium without ethanol) pump the first 10-12 litres into your car then fill your boat gas tank or jerry can. If the last person to use the pump, pumped regular gas then the first 10-12 litres already has regular gas in the combined piping system.
    Wow, I never would have figured that there was that much fuel in the lines before getting what you actually select to pump. Good to know. Tks.

    Cheers
    Smitty

    Straight shooter

  10. #9
    Apprentice

    User Info Menu

    Default

    I would think that 3 to 4 litres is enough to clear the line.

  11. #10
    Needs a new keyboard

    User Info Menu

    Default

    Gotta go +1 on the high speed jet.
    "Camo" is perfectly acceptable as a favorite colour.

    Proud member - NFA, Delta Waterfowl, CSSA, RGS, and OFAH

Page 1 of 2 12 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •