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    low speed needle bearing

    I still can't figure out why the motor will not idle. It runs fantastic at medium and highest speed. I took the carb off again and checked out the one piece the carb rebuild kit said I could leave in when cleaning. When I checked for the part, the idle needle bushing (bearing), there does not...
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    79 9.9 johnson idle problems

    My motor runs and starts great at high speeds. At idle it sputters and quits. I replaced the fuel pump, rebuilt the carb, and used different settings with the slow speed needle. I can see the carb is still getting fuel when it dies through the clear fuel line. The RPMs may possibly be too...
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    johnson idle problems

    I have a 79 johnson 9.9 that I just replaced the fuel pump, fuel line from the pump to the carb, gas tank, gas tank line and primer bulb, and spark plugs. This fixed my previous problem. The engine is now running great at speed above idle. When I idle the engine down it does not run smooth...
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    79 9.9hp Johnson Seahorse Problems

    Hi everyone, I'm new to the forum. I just started lurking here today because I just got a 79 Johnson 9.9hp Seahorse that has a problem staying running. It hadn't been run in a few years but the inside looks pretty clean and rust free. Last week my grandpa and I hooked it up to the hose with...
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    Need help with outboard year, gas mixture, and sparkplug info

    I recently aquired a Johnson 9.9 Seahorse outboard engine. The model number is 10R79B and the serial number is E5038248. Can anyone help me out with the year of the motor, the fuel mixture I should be using, and the correct spark plug to use and its gap distance?
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