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  1. R

    advance timing question

    First and foremost, I do have the original service manual for the engine. Does not cover this. So please answer... I have a 1977 70 hp model 70EL77s I took the boat down to the water and backed the boat down into the water and left it tied down to the truck. I set the lower end timing and...
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    Problem with setting timing

    Help me please, I have a 1977 70 hp johnson, great compression on all three cylinders. Here is what I have done. I went out on the water last weekend and had the timer base stick on me. After looking it over I decided to replace it, as well as the stator, the power pack and all three coils...
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    help with flywheel bolts

    I have a 1977 70hp johnson model 70EL77S. I cannot seem to find out what size I need the three bolts to be on the top of the flywheel. I know they need to be Grade 8. Will someone please tell me the size? Thanks
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    at the dock yesterday

    Well my wife and I get back into the dock shortyly before the sun starts to drop and on the left side of the dock is a group of 3 adults and 1 kid. They have a fairly new 22' +/- a few feet pontoon boat that is lined up and ready to take the rest of the way up onto the trailer, the two men are...
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    1977 70 hp advance sticking

    Went out on the bay today and started having issues when I put into gear and giving engine throttle. Took Cowl off and noticed that when I advance the throttle the advance is not advancing, I could move it by hand accelerate the boat and ran very smooth, until I throttled down and put into...
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    lack of power to accessories wire

    I am not getting any power to the Violet Accessory wire that I connect my Gauges to. I have a 1977 70 hp Johnson model 70EL77S. Any Ideas on where to look.
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    help with impeller with Photos

    I have a 1977 johnson 70 hp. I have been working on the motor, I didn't know when the last impeller was done, so I decided to do it anyway. Upon taking the housing off I noticed that there was no seal installed as i have installed here also there was absolutely no gasket sealer second the...
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    Please, Please, Please Someone Help.....

    I have just purchased a used CMC PT-130 unit works great when you jump it dirrectly to the battery in both dirrections. My problem is the wiring, this came out of a project boat where someone disconnected all wires. I have two new 5 pole relays, a new on/off/on switch and have replaced the...
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    CMC PT 130 Wiring

    I have just purchased a used CMC PT-130 unit works great when you jump it dirrectly to the battery in both dirrections. My problem is the wiring, this came out of a project boat where someone disconnected all wires. I have two new 5 pole relays, a new on/off/on switch and have replaced the...
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    wiring problem

    OK, this morning I went out to the boat to track down a drain on the battery. I found it to be the gauges hooked up to possitive not to the acc. I went ahead and purchased a good Marine Battery for running my electronics then kept the existing one for the engine. I have all the wires hooked...
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    started work on painting outboard

    The cover is the original cover that came with the engine the engine is a 1977 70 hp. That makes the engine 32 years old. Over the years the engine had been three colors, original white, then a gold with sparkles(figured this was in during the early 80's then the blue that you see in the photos...
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    second half of replacing new deck

    ALMOST DONE!!!!!! Well I have almost finished the project and wanted to include some of the work photos here is the new deck layed in, i took it back out after originally laying it in, to give the underside one more coat of resin, top side got a coat of resin, then was Glassed up to 10" of...
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    fiberglass mat or sheet, which is stronger?

    Can anyone tell me which one is stonger, fiberglass mat or Sheet?
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    help with new deck

    I have removed my old deck, pretty rotten in areas and checked the stingers, surprisingly all were in goo shap. Also checked the Transom, great shap. I have the new piece cut and resined on lower side when I lay it in I notice that there are spots where there is a gap from deck to stringer of...
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    will this tilt and trim fit my motor???

    I have a 1977 70 hp johnson model 70el77s. The tilt and trim is from a 1988 johnson 90 hp. Will this fit my motor? if not is there anything that I can purchase to make it fit? Thanks
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    question about placing new deck down

    I have removed my old deck, pretty rotten in areas and checked the stingers, surprisingly all were in goo shap. Also checked the Transom, great shap. I have the new piece cut and resined on lower side when I lay it in I notice that there are spots where there is a gap from deck to stringer of...
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    need advice on painting outboard

    Need advice? I have a 1977 Johnson 70hp. Model # 70EL77S. It is painted Blue right now. I don?t know if this is the color that it was originally. I am wanting to paint it the OEM color. Is there anyway that I can find out what was the factory color when produced. Second, does anyone...
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    will this prop work for my boat

    I am looking at a Stainless Steel Prop 13/21 13 spline. I have a 1977 70hp Johnson. I have it mounted on my 16' Sunbird. What is this prop designed for. I have not figured out the pitch, and how it relates to the boat. Will this one effect RPM? Any infor would be appreciated.
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    need help selecting Power Tilt-N-Trim

    I have a 1977 johnson 70 HP, runs great and lots of recent work completed, want to keep engine, only bad thing is manual tilt and trim. I don't know what tilt and trim to get. The model # is 70el77s. Will someone please tell me what model(s) to get, or provide a link. Thanks,
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    is this speed correct?

    I have a 1989 sunbird 16 foot, full fiberglass. I am running a 1977 70 hp Johnson. I clocked my WOT speed (5300 rpm) at 31mph(checked with gps). Does this seem right? Just want to make sure that I am getting everything out of my boat/engine that I can.
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