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    Intake Caps Important?

    Fellas, hopefully this is my last question for awhile. I got a 1970 Johnson 115HP. I noticed on the parts diagram that there are 4 caps that cover up the slow jets on the intake. Mine are missing, which means the carbs are pulling air in from the top of plenum near the flywheel, and of...
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    Fried Wire -- Is this okay to fix it?

    1970 Johnson 115HP. There is a wire (black with white stripe) that comes out from under the flywheel. It goes into a multi-wire plug. This plug then plugs into the pulse pack. So, as the black wire comes out from under the flywheel, the insulation is rotted and the wiring is exposed a...
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    1970 Johnson 115 Gear Ratio and Prop Size

    I have a 1970 Johnson 115 on a 1970 18' closed bow fiberglass Starcraft. I'd like to get rid of my aluminum prop and get a stainles. The OEM tach on my dash says that I'm at 3000 RPM's at WOT. My GPS says I'm traveling 28-29mph. The prop currently on the boat is a Michigan Wheel #01004...
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    1969 Johnson 115HP Slow Jet Adjustment

    How many turns out from seated does a motor like this typically run at? Is there a procedure to tune each carb or is it just an approximation (ie, run each carb 2.5 turns out for the most part and adjust all the carb in or out the same amount....or do most people have one carb at 2 turns out...
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    1969 Johnson 115HP Video: Carb loading up? Check it out!!

    This is a 1969 Johnson 115HP. Compression is 125psi in three cylinders, about 118psi in cylinder #1. My motor "loads up" when at idle speeds. Likes to stall out when I bring her down to an idle and then try to take off again. Then sometimes hard to start or keep started. Once you get it...
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    1969 Johnson 115HP Value

    I have a 1969 Starcraft V180 (closed bow 18 footer) that I restored (amateur job -- new transom, stringers, floor, and seats). It has the original outboard on it still....a 1969 115HP Johnson. I am thinking about putting newer motor on this boat and want to sell my outboard. It's got...
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    1969 Johnson 115HP Compression Question

    I was winterizing my boat yesterday and when I removed the spark plug on the upper left (as I face towards the bow), I noticed that it came loose REALLY easy. Hardly any pressure applied to the plug and it's turning..... I removed the plug, and there is a pool of oil laying in the cavacity of...
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    1969 115HP Johnson Air Intake Help!!

    This old motor runs pretty good. 125psi across all 4 cylinders, new water pump, lower unit rebuilt, and new power pack. However, the engine cowl as NO vent/opening for fresh air to get in. Where is the engine pulling fresh air from? There is a small filter right under the carbs that opens...
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