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    2005 115 Johnson PLSOR carb floods for no apparent reason

    Ummm... why? First, it is a one-carb problem. Second, the lever is already pointing as manual specifies for Run position.
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    2005 115 Johnson PLSOR carb floods for no apparent reason

    Tried the project on the water. After about 10 minutes of around idle RPM, give it some gas, motor sputters and dies, strong gas smell, primer bulb limp. Pop airbox, pump primer - there is a gas fountain in the throat of starboard top carb. Pull the carb, remove the float/needle - everything...
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    2005 115 Johnson PLSOR: how hot is too hot, and how much clunk is too much?

    About 3 weeks old. :) Probably should get the thermometer, run and monitor it for a while and see where it levels off. Looks like I am in range or close, though. I assumed it would be hotter at WOT than at idle, but, duh, it's pumping a lot more water through at WOT. Should have thought of it...
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    2005 115 Johnson PLSOR: how hot is too hot, and how much clunk is too much?

    What's my target temperature? I can tell it is above 140F, probably quite a bit above, but what bothers me is that it gets there in two minutes. Thanks!
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    2005 115 Johnson PLSOR: how hot is too hot, and how much clunk is too much?

    More (small) troubles with rebuild project. The shifter cable was pretty frayed (jacket was literally coming apart); had trouble finding neutral. Replaced, shifts nicely now, but the CLUNK! when clutch engages seems louder than it was. RPMs are around 600-700 (same as before). I realize after...
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    2005 Johnson 115 minor annoyance this time

    That works fine on a trailer, but I can't hear trim motor over the engine on the water.
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    2005 Johnson 115 minor annoyance this time

    Heh, that would explain why manual is silent on the subject..
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    2005 Johnson 115 minor annoyance this time

    When I trim the engine in, engine comes to a stop, but the trim motor keeps running until I release the button. Faulty switch? Where do I look for it? Come to think about it, the boat did not come with a trim angle gauge. Is there a way to hook up an aftermarket one? I suspect the sender is...
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    2005 Johnson 115 with low compression: noob seeking wisdom

    MMVZ 3.115 Minsk. But that was an early 80s motorcycle I was playing with in high school. Previous 2 stroke outboard was a 15 hp Mercury (on a different boat), not a drop of oil. Looks like I found my problem, though, you were right about the carb. Scum is down to believable level, a lot less...
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    2005 Johnson 115 with low compression: noob seeking wisdom

    That much I know, but back in my days they didn't have reeds. :) My previous 2 stroke outboard did not make this kind of mess, either.
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    2005 Johnson 115 with low compression: noob seeking wisdom

    Yep. Nothing obvious, except that the bulb doesn't go quite as firm as I thought it should, but if I tilt the engine, gas comes out of bottom port carb throat. Looks like a float valve to me. Let's see where I screwed up on rebuild...
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    2005 Johnson 115 with low compression: noob seeking wisdom

    Last December. Replaced warped bowls and maintenance items. Primer bulb replaced with OEM around the same time.
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    2005 Johnson 115 with low compression: noob seeking wisdom

    I probably don't - still learning. That's why I'm here. Not that I want to mess with them if I don't have to. What else is possible? Carb flooding? Fuel pump diaphragm leaking? Thanks!
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    2005 Johnson 115 with low compression: noob seeking wisdom

    Way too much even for a two-stroke, IMO. Any thoughts on what should I check to see if it is normal/not normal? Thanks!
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    2005 Johnson 115 with low compression: noob seeking wisdom

    True, but I am hearing they could cause trouble with raw gas/oil in exhaust, which was my problem in the first place. Not that I know much about two-strokes; haven't messed with them since high school.
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    2005 Johnson 115 with low compression: noob seeking wisdom

    On the muffs, oily scum floats on top of cooling water, and a few minutes later a good size loogie comes out (couple of tablespoons, maybe more, stinks like gas); lots more than one would expect even from a two-stroke. Bad fuel economy even for an engine this size. Bad smell of gas, with no...
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    2005 Johnson 115 with low compression: noob seeking wisdom

    Thanks, that's what I was thinking. If the compression were all over the place, I would have been a lot more worried. The only reason I started messing with it is because of snot in exhaust (and lousy fuel economy), but I think I narrowed it down to reeds.
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    2005 Johnson 115 with low compression: noob seeking wisdom

    Here is that 2005 2-stroke 115hp Johnson (PLSOR) that I am goofing around with. Compression seems consistently low (90 psi +/- in all 4 cylinders), but starts/idles/runs OK. Any thoughts on how to proceed? Leave it be and deal with it when real trouble starts? Tear down and rebuild now...
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