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Old 13 May 2020, 13:05   #1
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Country: UK - England
Town: Nottingham
Boat name: First Class Flyer
Make: AVON
Length: 5m +
Engine: 40hp
Join Date: Apr 2020
Posts: 9
2009 4 Stroke 40 Mariner wonít start!!

Have a 2009 Mariner 4 stroke 40hp that wonít start! Fuel line is fine, bulb is firm, kill switch is in correct position and throttle is in start yet no matter how many times I pull the cord I canít get it to fire and it wonít even turn over, any hints/tips? Or something obvious I might have missed? It was working fine when I viewed the boat 2 days ago but since being trailed home (circa 350 miles) it wonít even cough! Thanks Matt
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Old 13 May 2020, 13:09   #2
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Country: UK - England
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Boat name: The Bandit
Make: Ribtec 535
Length: 5m +
Engine: Yamaha 90 2-Stroke
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Posts: 482
Is it in gear?
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Old 13 May 2020, 13:12   #3
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No neutral
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Old 13 May 2020, 13:45   #4
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Country: UK - England
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You say it won’t even turn over? The pull start doesn’t spin the engine?

Pull start systems have sort of sacrificial parts that break inside causing damage to other stuff. Is the cord coming out and not spinning the engine over?
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Old 13 May 2020, 14:21   #5
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Country: UK - England
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Boat name: First Class Flyer
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Length: 5m +
Engine: 40hp
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Posts: 9
Apologies my original post didn’t make a great deal of sense, the pull cord does turn the engine over but absolutely no signs of life, I get the tension from the cord and can feel it spinning but nothing happens not even a cough!
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Old 13 May 2020, 14:33   #6
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Country: UK - England
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Engine: 50 tohatsu
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Have you had a plug out? If they are wet you’ve got fuel.

Can also check the spark when you have the plug out, that’ll give you a direction to diagnose further.
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Old 13 May 2020, 15:00   #7
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Country: UK - England
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I'm sure you've checked but sometimes the kill cord isn't quite fitted properly, I'd check it first, sounds electrical to me if it was running 2 days ago and you can't even get it to fire now.
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