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  1. M

    70 HP short shaft

    Hi I have a 55 short shaft 1980 and wonder if it is possible to replace the powerhead with a 70 long shaft? It seams to be impossble to find a 70 short shaft atleast in Sweden, I have only seen a Stinger short shaft on sale but sadly I missed it:(
  2. M

    E-tec replacement for a 55 1980 Johnson

    Hi I have a smal DC 15 feet with 4 seats and our 55 1980 Johnson is in a need of a rebuild. However I have a hard time to find rebuild kit for this old one, those I find is all from newer years so I am starting to think that perhaps we should get a new engine. Honda 50 comes up but I prefer...
  3. M

    Intstalling tilt and possible trim on a 1980 55 hp

    Hi Is it possible to install tilt and trim unit on a Johnson 55 1980 with short shaft? I have not found anything on the partlist for this motor but I am hoping that some other model would fit. Anyone know something about this?
  4. M

    Renovating lower unit Johnson 55 1980

    Hi. I have now replaced the oil two times this summer, both times the oil was white due to water and a little of metal on the magnet on the drain plug. I guess its time to renovate the lower unit, but how to open it fromn the rear, should it be unscrewed using a special tool or what?
  5. M

    Replace the thermostat Johnson 55 1980

    Hello. I have replaced the impeller with a repair kit due to overheating according to the temp meter, now it runs with temp just above the middle at medium and high speed, but on low speed it still goes to red on the meter. If I want to replace the thermostat, do I need to remove the cylinder...
  6. M

    Lower unit question

    Hi I am replacing the waterpump on a Johnson 55 1980 and just noted that when I turn the axel that connects the lowerunit with the engine I can turn the axel 1/4 before the propeller turns, bith forward and reverse. Is this how it should be or do I have a problme with the lower unit in some...
  7. M

    Temp meter says hot at low speed

    Hi, I have installed a temp meter(OMC original) on out Johnson 55 1980 short rigg. At low speed it goes all they way to top reading(red) once speeding above 20 knots, the temp stays in the midle. Could that be bad impeller just? Michael
  8. M

    Propeller for a Johnson 55 1980 short rigg

    Hi, I am looking for a new propeller but it seam like there is two lower gears, one smal, and one big? Since my boat is far away, anyone knows the size of the lower gear 3 1/2 inch?
  9. M

    To lean on idle

    Hi My Johnson 55 1980 sneezes due to it runs to lean at idle. If changing the idle orifici should it be bigger or smaller in order to make it run less lean? Now I have simply removed the idle orifici on one cylinder in order to bring the RPM down for the gearbox safety so it runs very fat...
  10. M

    Choke spring

    Hello, A spring fell of and now I don't know where it should be, it is for a 1980 Johnson 55 and I think it should bring back the choke when the throttle is open. Does anyone have a good photo or drawing of where it should be placed? It is item #51...
  11. M

    Regulating the outboard generator voltage

    Hello. For thus of us that have old or simple outboards with builtin generator with rectifier but no regulator the voltage at high RPM can be to high for the battery at least for longer duration but more important it can be to high for modern electronic. As a way to regulate the voltage I have...
  12. M

    Johnson 55 1980 sneezing at idle

    Hi, I posted in a thread with subject needle valve , reposting with a better subject for everyones ease. My engine runs perfect above idle but when started it takes just a short while before it starts to sneeze after 10-20 seconds when idle after a cold start . Compression is about 140 PSI on...
  13. M

    Needle valve 55 HP 1980

    Hi, I am rebuilding the carbs on a Johnson 55 1980 due to idle problems. After disassembled the carb I noticed that there was no spring on the needle valve, usually there is a spring(I thinks its is item #29 in the link below) that brings the needle out of the seat when the float sinks due to...
  14. M

    Johnson 70 for a short transom

    Hi, I have a old DC(Vator 15 GL) that has a short transom, the current engine is a Johnson 55 1980 with short(15 inch) rigg. Since I am looking for some more power can I mount a 70 hp Johnson on the 55 hp rigg? cheers Michael
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