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    Yamaha 115 outboard - runs all day - then won't start

    Have a 2004 yamaha 115hp 4 stroke. The problem started this summer. Primer bulb gets hard, it'll start and run all day, until shut off. Then won't start until it sits for an hour or more. Has new fuel filter and vst filter, and water fuel separator was done summer 2016. When it won't start...
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    2004 Yamaha 115 4 stroke speedo gauge wiring

    Just installed a new speedometer (Yamaha LCD gauge) on my boat with 2004 yamaha 4 stroke. The new gauge has a few extra wires. I think I have most of it figured out. It powers on, lights up, however showing the fuel being empty. I am most certain that is incorrect though. Can anyone confirm what...
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    Yamaha Speedometer gas gauge not working

    Just installed a new speedometer (Yamaha LCD gauge) on my boat with 2004 yamaha 4 stroke. The new gauge has a few extra wires. I think I have most of it figured out. It powers on, lights up, however showing the fuel being empty. I am most certain that is incorrect though. Can anyone confirm what...
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    1980 Evinrude 100HP running erratic - newly rebuilt

    My 1980 Evinrude 100HP is suddenly not running right. rebuilt the whole powerhead last year, with carbs and also replaced the power packs this past summer. New plugs this month as well. It fires up and idle seems to be okay but when I get on it it seems like its misfiring or running on not all...
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    1980 Evinrude 100hp battery not charging while running...help

    I have a 1980 Evinrude 100hp, rebuilt the power head last year. Just put it in the water after the winter with new battery, new power packs, reflector, and plugs and wires. Battery is not charging while running the motor. Being out on a good day battery has drained to 75%. And then hard to...
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    1980 V-4 Cross flow - Key does not kill motor?

    After my rebuild on my 1980 Evinrude 100hp Crossflow, and some issues along the way I finally put my boat in the water. Motor runs great, HOWEVER the key when turned off is not killing the engine. It cuts out about half power and then when turned back to the run position it gains "full" power...
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    1980 Evinrude V4 Crossflow - Just rebuilt, NEED SOME HELP.

    I just finally finished my rebuild on my 1980 Evinrude 100HP Crossflow. New pistons, rings, rods, seals, thermostats...the whole 9 yards. I got everything wired up tonight and went for the first turn over. She started right up after 3 cranks and was running great for a few minutes. I turned it...
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    1980 Evinrude 100HP - Low compression on 2 cylinders. Need help

    Re: 1980 Evinrude 100HP - Low compression on 2 cylinders. Need help Pulled most of the motor apart tonight. One cylinder needs to be bored for sure. Looks like the bottom cylinder (#3) is the one that had a broke ring. Everything came apart easy with no broken bolts. Heres a few photos for...
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    1980 Evinrude 100HP - Low compression on 2 cylinders. Need help

    Re: 1980 Evinrude 100HP - Low compression on 2 cylinders. Need help Well, I found the problem. Not what I was hoping. Both pistons are toast. All gouged up with some damage to the head as well. Here are the photos I took of both pistons and inside the head. Screw driver in cylinder #3 to give...
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    1980 Evinrude 100HP - Low compression on 2 cylinders. Need help

    Hey guys, New member here! After a bit of run arounds with my 1980 Evinrude 100HP not running as it should (not accelerating or getting up to speed as it should) and after rebuilding the carbs and new plugs, I finally checked the compression. Yes I know something I should prolly have done to...
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