Johnson 50hp 1999

imported_tlc

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Joined
Mar 1, 2007
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6
our motor which has run excellent until now is now hard starting , yestarday when traveling on planeat about 5000rpm's it just cut out on us. After priming and waiting about 5 minutes it started again only to cut out on us 1/2 way across the lake, we ran approx 3 miles. Again to do the same thing wait, reprime , hard starting then it would run another 2 miles but kept surging. we finally got off the water.
We replaced the plugs, checked the gas, cleaned the carbs. It will run without surging if you throttle it at the carburator linkage but if you run it from the console it keeps surging and running eraticly eventually cutting out again.
The plugs were wet when checked that is why we replaced them , but the compresson is fine at 140 in each cylinder and holds it.
any suggestions would be appreciated
Tina
 

tashasdaddy

Honorary Moderator Emeritus
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51,019
Re: Johnson 50hp 1999

sounds like amplifer (power pack) getting hot and failing. check spark, each plug. next time it fails. wet plugs means no spark,
 

R.Johnson

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Sep 24, 2003
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Re: Johnson 50hp 1999

Did you try pumping the primer bulb to keep it running?
 

imported_tlc

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Mar 1, 2007
Messages
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Re: Johnson 50hp 1999

R.Johnson said:
Did you try pumping the primer bulb to keep it running?

I did pump the primer to get it started but not to keep it running. If I pumped the bulb it would start better.
 

imported_tlc

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Mar 1, 2007
Messages
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Re: Johnson 50hp 1999

tashasdaddy said:
sounds like amplifer (power pack) getting hot and failing. check spark, each plug. next time it fails. wet plugs means no spark,

Is there any way of checking the power pack???

PS: Huskies are me second favorite dog, but I breed German German Shepherds down here in Florida, When we were up north it was Huskies territory.
 

imported_tlc

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Mar 1, 2007
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Re: Johnson 50hp 1999

Is there any way of checking the powerpack???? Still can't solve this problem
 
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