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  1. M

    Swap Lower Unit from johnson 110 to 140???

    DISASTER STRIKES AGAIN!! Finally got my motor running again after 1600 bucs and well you guessed it, soon as I take it out, the lower unit blows!! Anyway I got on a plane for about 5 seconds and bam the entire boat starts shaking violently and the motor looked like it was goin to jump off the...
  2. M

    FINALLY FIXED 1988 Johnson 140 looper v4

    I've been trying to get this motor running for almost a year. If you read my other posts, you will get a better idea of what I been through. I would like to thank ALL of you who helped me and gave me great advice, especially Daselbee (Doug) who has spent plenty time on the phone with me...
  3. M

    Timing 140 v4 looper

    1988 johnson Checked timing today with timing light at idle in the water. Marked flywheel at TDC for each cyl. When I pointed light at flywheel for cyl 1 I could see the mark for cyl 1 and 3. Same thing when I hooked the light up to cyl 2 I could see mark for 2 and 4. Seems like double fire...
  4. M

    Plug inspection with PIC, ignition or fuel??

    1988 johnson 140 looper v4 I replaced fuel line, bulb, filter Fresh fuel and tried 3 different tanks Tried 3 different fuel pumps Took carbs off and cleaned EVERY jet and orifice, perfectly clean Motor stalls at WOT or runs at 3/4 speed sometimes Just installed new QL77JC4 plugs Plug 1 looks...
  5. M

    Only runs 3/4 speed, replace vro fuel pump

    1988 johnson 140 hp looper I am having trouble staying at full power. Runs about 36mph for 5 seconds then drops to about 32mph. Normally runs at 43mph. Trying to determine if it is ignition or fuel problem. My question is can I replace the vro fuel pump with a normal fuel pump from a 110...
  6. M

    Spark plug evaluation PICTURES

    1988 johnson 140 looper Losing power at WOT and cylinder 3 spark plug has dry black coating all over. Notice the pics as if you were lookin at motor from back. The 2 on the left are cyl 2 and 4 and the two on the right are 1 and 3. Also cyl 4 spark plug the sleeve slides up and there is no...
  7. M

    Losing power at WOT

    1988 johnson 140 vro looper Finally some good news!! Got her running but still one last thing. Starts fine and idles good. Has a slight miss (lean pop) every 5 seconds in nuetral at idle. Runs perfect when put at WOT for about 5 seconds and then drops rpms and speed and then runs at about 3/4...
  8. M

    CARB problem??

    1988 johnson 140 looper Run it on rabbit ears and revs out of control but when I put my hand over one certain carb it idles down and purrs like a kitten and sounds perfect. I did lync and sync and made sure plates are closed at idle. Even turned idle screw all the way down to lowest idle...
  9. M

    1988 johnson 140 looper AIR LEAK IN CARB

    I ran it today in tub of water and it was idling really high so I put my hand over each carb until WELLA it started idling perfect and didnt miss a beat. It is the top carb which I assume has an air leak and causing a lean running on that cylinder. As long as I held my hand over it, the motor...
  10. M

    1988 Johnson 140 miss at idle; spark plug dry black sooty

    FINALLY got some life back!! Man, crossing the orange coil wires makes a HUGE difference. So now she starts perfect and runs ok but I can still here a miss at idle. When it misses it makes a loud pop and shoots out extra exhaust from the propeller and shakes the motor. Does this pretty...
  11. M

    Bad timing 140 Johnson 1988 vro

    Finally got spark on all 4 but now its the worst motor I ever heard. I could barely get it to start and it kept killing and backfiring and would not stay running and made different pitch sounds. I think I may have crossed the orange wires from the ppack to coils on cylinders 1 and 3. I will...
  12. M

    Intermittent spark, Stator or timer base??

    1988 johnson 140 vro Last time I took it out it ran perfect for 10 seconds WOT then died and I got no spark. Took it home and tested it and noticed spark was coming and going on all 4 cylinders. Ruled out ignition switch, ppack, ignition coils, plugs, wires. Finally this weekend I popped fly...
  13. M

    140 Johnson 1989 spark coming and going

    I tested for spark today with spark gap tester and noticed I got spark for a few seconds and then no spark, then spark, then no spark. It keeps coming and going. I tried swapping coils and even put on a different powerpack and made no difference. I pulled the main red wire harness and jump...
  14. M

    can bad stator= no spark??

    At end of my rope...ready to trash this motor. I have changed almost everything on this motor except the stator and timer base. I am SURE I have good clean fuel to all 4 carbs and the jets are all clear. I have replaced the VRO fuel pump. I replaced powerpack, plugs, wires, and coils. Took...
  15. M

    Carb warped, not seating correctly

    Ive been troubleshooting my motor 1989 johnson 140 looper for a while now. Pulled all the carbs and cleaned them thoroughly with carb cleaner and compressed air. Replaced spaghetti gaskets and side gaskets on all 4. Noticed when I was installing the last carb (lowest left) that it wasnt...
  16. M

    140 johnson vro 1989 runs good with ear muffs but not in water

    I get her running yesterday on the earmuffs. Sounded great idled perfect and no backfiring. SO I tried the cylinder drop test and took off the wire from each cylinder while idling. When I pulled cylinder 1 and 2 the motor killed but cylinder 3 and 4 made no difference. Anyways took it on the...
  17. M

    1989 johnson 140hp only runs when choked

    Hi I am having issues with my 140 Johnson VRO. It started giving me trouble and I took it to a mechanic and he said the reed gasket needed to be replaced first and foremost. So he changed the gasket and then said I needed a powerpack because it had a miss in cyl 3. SO I told him thanks but no...
  18. M

    1989 Johnson 140 VRO I'm stumped!

    Mechanic changed reed valve gasket. I replaced power pack and fuel pump. I took off the carbs and sprayed carb cleaner in all jets and they were all clear. Motor is not running good at all. It will get on a plane and run wide open ONLY if I push the key in for choke. Soon as I let go off...
  19. M

    1989 Johnson 140hp CARB issues????

    OK here is the deal. Gettin frustrated here!! Jus spent brought the total to $780 and still motor runs terrible. So first off I took the motor to a professional mechanic who changed the reed gasket and charged $520. He then said the motor needed a power pack and wanted to charge 280 more. SO...
  20. M

    1989 johnson 140 fuel problems

    Took boat out last week to diagnose the vro fuel pump. So I bypassed the fuel pump entirely and just went from gas tank straight to the carb. I plugged the pulse emitter hose with a bolt and clamp. So I had someone pump the ball while i got on a plane and it did not seem to work. Then we...
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