1979 50 HP Johnson

[bcsparky101]

Model # 50rl79c two cylinder Turns over but there is no spark looking for possible answers to this problem. Bought the motor from a dead guy..he can't tell me anything.

 

[snapperbait]

Re: 1979 50 HP Johnson

Could be anything from a faulty switch to a bad power pack... <br /><br />To really check the ignition system you need a service manual so you know the steps and what wire leads are used to test various componants with a volt/ohm meter...

 

[bcsparky101]

Re: 1979 50 HP Johnson

Well there is no spark at the plugs... and I don't find power at the coils. And there is two wires leading from something that feeds the coils..( don't know what it is) to a switch on the dash that is sealed in a redish plastic.. that again I have no idea about. I'd like to learn and know what these things are and try to fix it myself so I know what's what. This is my first boat motor.

 

[bcsparky101]

Re: 1979 50 HP Johnson

In addition to the previous post one of the two wire leading up to the dash switch just goes back to the motor and is grounded. that confuses me.

 

[snapperbait]

Re: 1979 50 HP Johnson

there is two wires leading from something that feeds the coils

That "something" would be the power pack..<br /><br />

one of the two wire leading up to the dash switch just goes back to the motor and is grounded.

Just for kicks, disconnect that grounded wire, then see if you have spark...<br /><br />Anywhoo.. If you want to learn, pick up a service manual for your motor... It'd be the best $$ you can spend.. You might also try a local library.. Often times you will find librarys have service manuals for various items such as outboard motors, cars, lawnmowers, ect.....

 

[bcsparky101]

Re: 1979 50 HP Johnson

Thanks for the input I will try that and I will be picking up a service manuel if I can find one .. only had the motor for two days.. Hey any idea as to the "mix" this motor would use?

 

[fireman57]

Re: 1979 50 HP Johnson

50:1

 

[bcsparky101]

Re: 1979 50 HP Johnson

Ok I've tried disconnecting the ground wire as suggested... Still doesn't fire, But I took that power pack thing out now and am going to see if it can be tested at a shop.I'm not home from work in time to take the whole boat in.