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Old 22 April 2004, 16:15   #1
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Country: UK - England
Town: Bristol
Boat name: sea toad
Make: avon
Length: 5.45
Engine: yam 90hp
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help bad running 15hp mariner

I have just bought a 15 mariner short shaft manual start.
i think the bloke i bought it from never drained the fuel in the carb when he had finished his days boating and used old fuel from last season, hense the engine is smoking a bit and missfireing . can anyone tell me a web site i can look at to see carb strip down and re build and carb settings
Thanks Dave
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Old 22 April 2004, 16:50   #2
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Country: Ireland
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carb

Take the carb out , strip it down carefully, blow every orifice clear, but most likely just dirt, If you reassemble it and it is still not right, then you will need to check air screw settings, maybe float height, try just a good clean first
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Old 22 April 2004, 16:53   #3
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Country: UK - England
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thanks Gavin i will try that tomorrow night and let you know how i get on
thanks Dave
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Old 22 April 2004, 18:26   #4
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Country: UK - Scotland
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Make sure you run it on a correct mix of new fuel before you start to dismantle it.

Small 2 stroke motors can become very smokey and erratic sounding if left to tickover for a length of time. Some will gas up and simply won't tickover for a long period.

They can also sound as though they are misfiring when you rev them because they are not working against a load.

If you are new to all this, give it a try on a boat first. Somewhere safe, of course. You might be pleasantly surprised.
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