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    1975 15hp Evinrude Reassembly of Magneto Help

    Hey guys, I have a 15504C evinrude. 1975 Evinrude 15hp. I tore the whole motor down and replaced rings and pistons. she runs great now. got to noticing tho that my magneto or throttle advance plate has a bit of wobble to it. Looked at my work bench and noticed a metal ring laying there 8-10...
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    15hp high rpm troubles....HELP

    My 85 15hp johnson idles great but wouldnt run at high rpm unless the choke was pulled out completely. I rebuilt the carburator but now it runs good to about 1/4 to 1/2 throttle then runs rough like its boggin down. I try to choke it slightly and it always dies so it seems like it may be getting...
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    Spark test help!

    Hey guys i bought a spark tester but dont know what to set it on. Directions only tell you directions for automobiles.
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    15 hp half speed

    Hey guys my 15 hp johnson is having some issues. My first time to take it on the water it iwas hard to start. It takes 10-15 pulls at WOT and as i was going across the lake i noticed my buddys 15hp rude was twice as fast as me. His being on a 15ft boat and mine on a 1436 duracraft johnboat with...
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    convert Rope to Electric Start?

    Hey guys I have a 15hp Johnson 15R78B and I want to put an electric start on it. how hard is this? and where does the starter mount? I figure I have to buy a mounting bracket. Can someone help me find a kit?
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    Silencer causes idle issue?

    15hp johnson 15R78B Hey guys this is the motor i was having idle issues out of, just a question could running this without the fuel cover cause my motor to not idle? Hince getting to much air and messing with the fuel/air mixture at low speeds?
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    What next 15 johnson

    Hey guys 15R78B motor wasnt running good at idle, starts running rough and when i idle lower it stalls and dies. Hard to start. I thought it was the carb. Cleaned it and put a kit in it twice in 5 days. I assure you its spotless. I thought it might be fuel related so i mixed fresh gas...
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    How to install fuel pump?

    Hey guys I have a 1978 Johnson 15 hp. M# 15R78B. My fuel pump was bad so I bought a new one and I am not sure on how to install it. Do I just screw it on and im good to go? or is there some kind of process involved?
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    After Carb Rebuild motor won't run at low RPM

    Hey guys, same 15hp johnson as in my other threads. 15R78B. I have rebuilt the carb on this thing and it ran alot better. However it won't run at low rpm's. I completely disassembled the carburator twice and installed a carb kit. Twice! in a week. The motor still won't run at low rpms. As i...
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    is my fuel pump going bad?

    Hey guys I just rebuilt my carb on my 76 johnson M# 15R76B It ran good for about 25 minutes then died and won't hardly start. It only starts if I pull on it at about half throttle choking it. It fires just for a second. So I push the choke in and it fires up. It starts to rev up and then just...
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    Tiller Handle Adjust?

    78 johnson 15. The linkage on the tiller handle where it folds up is not right. The two links are not snug together. How do i tighten these up to make them fit together snuggly. Any help is appreciated
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    1978 15HP Johnson won't run right!

    Hey guys I am new to the forum and I need help. I recently acquired a 15hp Johnson 78 model. Model # 15R78B This motors lower unit was rebuilt 2 years ago and is in great condition. I had to fix the pull start, install a new impeller and then I tried to get it to run. the motor would run but...
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