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Old 08-27-2015, 01:02 PM
tessntatum tessntatum is offline
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1988 prostar 190 intermittent stalling

1988 prostar 190 indmar 351. Mallory electronic ignition.
Stalls intermittently.
When it stalls the coil is not getting power. It gets power to fire but not keep running. If I jump power from the battery to the resistor ballast it fires and runs fine. I thought it was the ignition key switch so i replaced that and it was not that. I was told that it could possibly be the tach wire on the coil grounding out intermittently. Does anyone have any ideas??
Thanks
Chris
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  #2  
Old 08-27-2015, 01:23 PM
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1990lmtd 1990lmtd is online now
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Would you be able to check a ground reference on that wire when it stalls? Say check the resistance to ground while engine off but running properly then do the same test after it stalls and won't start. That could prove or disprove your theory. By the way Chris where do you put in?
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Old 08-27-2015, 01:34 PM
tessntatum tessntatum is offline
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I am going to check with a meter tomorrow The boat is in rhode island.
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Old 08-27-2015, 01:38 PM
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Quote:
Originally Posted by tessntatum View Post
I am going to check with a meter tomorrow The boat is in rhode island.
I saw that, I meant, what lake?
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Old 08-27-2015, 02:41 PM
tessntatum tessntatum is offline
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johnsons pond sorry
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Old 08-27-2015, 04:13 PM
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That's cool, how's the water level? I think we've met. Did I sell you a slalom ski a few years ago?
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Old 08-27-2015, 09:00 PM
tessntatum tessntatum is offline
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water level is good but it is going to get drained starting the 4th. I dont think i sold a ski. Where are you located?
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Old 08-27-2015, 09:11 PM
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I'm on pascoag reservoir, I sold my last slalom ski to a guy that I think was on Johnsons pond named Chris with a mastercraft. Too funny. Good luck with your coil.

Last edited by 1990lmtd; 08-27-2015 at 10:34 PM.
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Old Yesterday, 02:20 AM
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Quote:
Originally Posted by tessntatum View Post
1988 prostar 190 indmar 351. Mallory electronic ignition.
Stalls intermittently.
When it stalls the coil is not getting power. It gets power to fire but not keep running. If I jump power from the battery to the resistor ballast it fires and runs fine. I thought it was the ignition key switch so i replaced that and it was not that. I was told that it could possibly be the tach wire on the coil grounding out intermittently. Does anyone have any ideas??
Thanks
Chris
I had the same issue recently. There's an 8 pin connector IIRC back near the transmission close to the circuit breaker. A while back, mine got loose and I lost power to the coil. Check that connector. I used electrowash and cleaned it up and that fixed my problem.
Good luck!
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