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    Idle rpms?

    55EL78S 55 Johnson 1978<br /><br />My Seloc book nor the Cylmers book tells me what the idle RPM should be in neutral or in gear. (In the water, not with ears on.) Does anybody have this info or is it just by ear? If it was an automobile I would not ask this question.<br /><br />Any help would...
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    increase or decrease prop pitch

    I have a 7.5 erude that was on my 12'jon boat, runs great and pushes it right along. I am now putting it on my 18' vee hull to use as a kicker. It seems to cavitate/slip at high rpm, hub is good. Should I increase or decrease the prop pitch to push the additional weight?<br /><br />Smitty
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    Fixed Jet Carb to Adjustable?

    Johnson 55EL78S 55hp Type IV Carbs<br />Currently both carbs are fixed jets, <br />low speed and high speed. No med range<br />jet. Is it possible to make the idle<br />speed jets adjustable without replacing <br />the carbs?<br /><br />Smitty
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    aftermarket vs OEM

    How do ya'll feel about aftermarket parts vs OEM. I'm looking at water pump prices. $34.00 vs $65.00 either way I have to order the part. Just looking for opinons. The aftermarket water pump is GLM.<br /><br />Smitty
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    How to test a VRO?

    On the automatic oilers, VRO how does one test these before it is too late and the motor locks?
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    4 stroking?

    After spending hours and hours reading all these posts. I have seen reference to a symptom called 4 stroking. I can only assume that it means the engine is only firing every other stroke of the piston like a car. If this is true, what would cause it and how would one check for this and fix...
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    Symptoms of reed failure ?

    Before I start pulling my engine apart. Could someone please tell me the symptoms an engine would have if the reeds were broken, bent, stuck, dirty or any type of reed failure?<br /><br />Thank you Smitty
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    I may have found the problem!! Carb Jets

    55 Johnson 55EL78S<br /><br />Talke to an old boy who had a listing on carb jet sizes. He said the listing on mine showed to be .054<br />So I pulled mine and found it to be .062.<br /><br />Does any body know where I can buy carb jets?<br /><br />Thanks Smitty
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    Power Pack wiring

    55 Johnson 55el78s<br /><br />Hi guys, I'm still swingin' at it. <br />Besides the wires that go under the flywheel I have 3 other wires on the powerpack that go to the coils and ground. Seloc book shows a connector but there is not one on my engine. It also shows a diagram with a neat orderly...
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    Points ?

    1978 Johnson 55hp Model 55EL78S<br />Does this motor have points.?<br />I am still grasping at straws here.<br /><br />Smitty
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    Running Rich ?

    1978 55 Johnson <br /><br />I just rebuilt the carbs, checked timing and sync. replaced the prop. and I still can not get over 4000 rpms. The idle is lousey. Spark plugs are always wet when I pull them out and check them. Unfortuneatly the slow speed and high speed jets are fixed no adjustment...
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    Battery Charging

    Another dumb question. Does the battery have to be disconnected to be put on slow charge for a few days?<br /><br />If so, what gets damaged if it isn't disconnected.<br /><br />Tach is now acting strange since charging the battery while connected to the system.<br /><br />1978 55hp Johnson <br...
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    Battery Charging

    Another dumb question. Does the battery have to be disconnected to be put on slow charge for a few days?<br /><br />If so, what gets damaged if it isn't disconnected.<br /><br />Tach is now acting strange since charging the battery while connected to the system.<br /><br />1978 55hp Johnson <br...
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    Spark Tester

    Wanted to try Joe Reeves timing trick,<br />but where can I buy a spark tester for<br />a 2 cyl. Johnson? <br /><br />Thanks Smitty
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    Stator question?

    1978 55hp Johnson 55EL78S<br />I went by the book and tested the stator it reads a little low on ohms. Checked around an found nobody has one. Already replaced rectifier (today). Is there anyway to repair a stator? Tune it up LOL. Tach works but just very low voltage. Battery slowly dieing...
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    Charging volts ? Water Presure?

    I just finshed putting the center console in my 1960 Starcraft 1978 55hp Johnson no regulator that I can find. Plus all the gauges it didn't have. Water Presure, Tach, Head Temp, and Volt meter. All controlled by a seperate switch from the battery. Stayed out of the control box, because manual...
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    steering aedjustment?

    1978 55 Johnson<br /><br />Ok, I have replaced the steering gear (helm) and the cable from the gear to the motor. But I still have a large amount of play, about a half turn of the wheel before the motor starts to turn. It appears to be in the motor part of the setup. Is there any type of...
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    varnish, polyU, or fiberglass

    I have a wood deck hatch on my boat. I find myself<br /> refinishing it every 12 to 18 months. What would be<br />the best finish to last the longest? Vanish, PolyU, <br />clear fiberglass or is there something better? Would <br />like to keep the wood look. I think it should last<br...
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    55 Johnson carb/timing question

    At the point where the timing tab meets the stop, <br />should the carbs be wide open? Or still have more to go?<br /><br />Smitty
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    serial numbers?

    On my '78 55 johnson it has the serial number on the mount (transom mount) it also has them on a freeze plug looking thing on the head. Does anyone know if they do this on a 2001 15 hp johnson?<br /><br />Smitty
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