1975 70hp johnson new parts but still no spark

secur

Cadet
Joined
Aug 4, 2001
Messages
7
Hi <br />have a 1975 johnson 3 cylinder .I was on lake and running fine then motor quit like i had turned off the key and now has no spark on any cylinder.From various post and my repair manual I think I have done all tests.lone wolf sent me a troubleshooting guide every thing tested ok but I bought new stator powerpack and rectifer replaced all still no spark.i have tried to jump start to be sure there is enough amps. i have discoed the ground from key switch .and the red main connector and used remote starter button at selonoid. the only thing left is the timer base i think that is what is called under stator on a moviable plate. can this cause no spark how can I test it.Please help if you can there are no boat repair shops near here.<br />Thanks ED
 

clanton

Rear Admiral
Joined
Jul 9, 2001
Messages
4,876
Re: 1975 70hp johnson new parts but still no spark

Do you have peak reading meter?
 

clanton

Rear Admiral
Joined
Jul 9, 2001
Messages
4,876
Re: 1975 70hp johnson new parts but still no spark

Do you have peak reading meter?
 

secur

Cadet
Joined
Aug 4, 2001
Messages
7
Re: 1975 70hp johnson new parts but still no spark

no I dont unless you mean a vom that holds the highest reading. If you can give me any info I will try to get one if it will help
 

clanton

Rear Admiral
Joined
Jul 9, 2001
Messages
4,876
Re: 1975 70hp johnson new parts but still no spark

If you have VOM, you can get adapter from www.esitest.com, I dont have stock in the company. Use this to check output voltage from stator,powerpac, and timer. Odd that all 3 timer sensors would go bad at same time. I would recheck wire connections. Output from timer sensor 0.5 volts, stator 150 volts. pack output 125 volts, At cranking rpms sparksplugs in.
 
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