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Old 12 July 2004, 12:52   #1
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Country: UK - Scotland
Town: Greenock area
Boat name: Joni Chimpo
Make: Narwhall
Length: 4m +
Engine: 50hp Mariner
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Engine No Worky?

Help... seem to be having a bit of a problem with my Mariner 50 ELPTO. It is approx a 1994 engine.

Went from Kip Marina to Loch striven with no problems and no running problems. Beached the boat and had a BBQ, when I then tried to restart the engine it would turn over but did not want to kick into life!

Luckily I had two other friends with boats and was able to be towed back to Kip. I have checked over the engine, it appears to be getting fuel to the carbs, and plugs, it also turns over without a problem, just doesnt want to start! There was a weak spark, but since cleaning up the main fuse the spark appears to be stronger, however it still refuses to start?

Cant understand how the engine ran fine all day, on the journey over it was switched on and off 2 or 3 times without any problems however after being left four a couple of hours it now refuses to start?

Only one other symptom that I noticed was that normally when I turn the key in the ignition it lets out a beep before it starts. It doesnt appear to be doing this either at this moment in time?

Help...........
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Old 12 July 2004, 13:21   #2
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Country: UK - England
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Engine: Volvo D4 260hp DP
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Kill Cord?

Did you put your kill cord on, sounds like you may have left it off, or there is a problem with the switch IMHO

P.S. I am no engineer, just done the same before myself
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Old 12 July 2004, 13:27   #3
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Yeah thot it could be something to do with the kill switch but it is connected and still getting a spark.

I would imagine if the kill switch isnt on, it wouldnt get a spark? Not sure tho...

Cheers for the info.....
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Old 12 July 2004, 13:46   #4
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Another possibility

Another possibility is that the battery does not have enough power to start it, again I have had this problem when I have been using the boat overnight with power used on the boat, and in the morning had to switch back to battery 1 to start as battery 2 had been nearly run down. I didn't get the peep either, but switching to my running battery did the job.

Excuse me if I am talking nonsense, just trying to help
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Old 12 July 2004, 13:55   #5
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Country: UK - Scotland
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Cheers for the help Pete... your thinking is exaclty the same as mine has been.... had the battery out and charged it, then put a meter across it to make sure there was enough charge in it. Still wouldnt start!
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Old 12 July 2004, 14:33   #6
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Country: UK - England
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Gary
I have the 60hp version of this engine. I have just looked through the manual and it says -

When the ignition switch is initally turned on the the warning horn will sound to test the system. Failure of this test indicates a problem,have the outboard checked by a dealer.

I know that does not solve your problem but it may be a clue. I will keep looking through the book for a possible solution.
Jason
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Old 12 July 2004, 14:54   #7
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Cheers Brodie, looks like i might need to take the boat to the nearest Mariner Dealer!
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Old 12 July 2004, 15:28   #8
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Gary
I have read though the Clymer and it says if the warning system does not self test it is most likely to be a bad connection in the engines main wiring harness or ignition switch. From what I can see in the manual, if it is not one of these faults then it will be a trip to the dealer. I know the main wiring connector can vibrate lose at the engine end. Mine has a cable tie round it because it came out once and the engine died.
Jason
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Old 12 July 2004, 16:00   #9
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If it had come lose would it still spark though?
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Old 12 July 2004, 16:07   #10
tue
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I have come across a similar problem with a 90hp Mariner on one of our club dive boats. The main engine harness loom plug had got damp and started to bridge across 2 terminals. This then caused the engine to have weak then no spark. This particular engine developed a mis-fire before hand but once switched off would not re-start. It would not happen every time and sometimes not mis-fire but once switched off it lost its spark. I cleaned and dried the plug and it has been fine since. Worth checking.
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