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...
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
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
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
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...
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
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
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...
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...
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...
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...
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...
