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Old 07 May 2004, 08:34   #21
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Does anyone know offhand, if the Mariner 90hp will have a safetymode/sensor? Where should I look to find out?
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Old 07 May 2004, 08:38   #22
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I suspect not - usually it's a feature of the electronic control. But I could be wrong as I don't know the Mariner 90 engine!
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Old 07 May 2004, 08:46   #23
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How will a 2-stroke react to water in the fuel? I'm looking for something more technical than 'Blow Up'... I would think it'll "burn" a bit but when you stop it'll rust the internal bits...any body more technical?
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Old 07 May 2004, 08:46   #24
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I didn't think so.

Many thanks Richard!
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Old 07 May 2004, 13:16   #25
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Quote:
Originally Posted by Daniel
How will a 2-stroke react to water in the fuel? I'm looking for something more technical than 'Blow Up'... I would think it'll "burn" a bit but when you stop it'll rust the internal bits...any body more technical?
when my not quite so happy max is in pieces I'll tell you.
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Old 07 May 2004, 16:43   #26
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Can I ask at this point, what is the general concensus regarding due diligence in preventing water getting into the engine. Mine is 2 stroke 90hp with a Quiksilver water separator before the primer bulb. Should I look at installing some other checking/preventative device? How often should I change that water separator(the one that looks like an oil filter)?

Thanks as always!
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Old 07 May 2004, 17:05   #27
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Can I ask at this point, what is the general concensus regarding due diligence in preventing water getting into the engine. Mine is 2 stroke 90hp with a Quiksilver water separator before the primer bulb. Should I look at installing some other checking/preventative device? How often should I change that water separator(the one that looks like an oil filter)?

Thanks as always!
I don't think you have to change it that often but you should drain it before and after every trip. You can change the filter fairly frequently I think they are usually a paper element.


You can also get a funnel which filters out the water.

both of these things are available from ASAP supplies who are on the web..

The main causes of water as I can work out are

Water in purchased fuel.

Condensation in cans and boat tanks . This is paricularly an issue in this country as our nights are much colder than our days and this really gets the condensation rocking.

The smart money is on keeping your tanks full so fill em up after use and not before.

Split internal tanks. Jonny Fuller ( a fine engineer) has managed to convince me that stainless is not the best material to build an internal tank with, it becomes less flexible with age and can split particulalry if you are a rough rider. Plastic or aluminum for me in the future.

In our yard a unit is occupied by a fuel tank cleaning company. They empty and clean the tanks from fuel stations. they also have some stunning kit which checks for leaks with ultrasound.

They tell me that they will not purchase any fuel from a garage that isn't outright owned by the oil company or a supermarket. It's because the local garages franchises are less inclined to spend the money on regular cleaning and filter overhaul. Also they are a bit lower down the delivery chain so they tend to run lower on fuel more often. Guess where the water lives!
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Old 07 May 2004, 17:22   #28
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That's definitely useful information Rogue Wave, thanks for that.

I usually fill up at marine filling stations, so I'm hoping they're more inclined to have cleaner equipment/fuel. I hope so as they're expensive enough.
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Old 07 May 2004, 17:46   #29
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My old Mercury 60 two stroke died in the middle of Studland bay because of water contamination, all the carbs were full of water. I'd only had the boat a few months so I can't imagine it was entirely down to condensation. The petrol came from Tesco. Cost 200 to get it sorted

I have since fitted a bog standard quicksilver filter...Havn't had any problems yet.

The backup engine was worth its weight in gold that day.
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Old 07 May 2004, 17:51   #30
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Hmmmm... if the water's in the petrol station tanks, why doesn't my car keep breaking down? I certainly let the tank get very low from time to time.
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