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1998 Mercury 200 EFI Offshore - Quick Flush Compatible?

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1998 Mercury 200 EFI Offshore - Quick Flush Compatible?

Old 03-24-2013, 12:35 AM
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Default 1998 Mercury 200 EFI Offshore - Quick Flush Compatible?

I have a 1998 Merc 200 EFI Offshore motor. Next to the "pee hole" there is a four sided bolt/plug. Is this motor compatible with a quick flush kit? I found one at West Marine but I'm not sure if my motor is meant to be flushed that way.

You can sort of make out the plug in this photo.




And here is the quick flush attachment. Anybody use one of these? It's a plastic piece, wondering how safe it is to leave on in place of the plug when running.

http://www.westmarine.com/webapp/wcs...h#.UU6bdxysiSo

Last edited by littleblue; 03-24-2013 at 12:45 AM.
Old 03-24-2013, 04:49 AM
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The Mercury Shop Manual says Do not run engine on flush inlet. Flush with "Ears on lower unit" . I accidently ran mine with the plug out and had no damage.
Old 03-24-2013, 07:04 AM
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you can flush thru that port but not with the engine running

I prefer to use the muffs for flushing
Old 03-24-2013, 11:20 AM
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Right, don't want to run the engine, just flush. I'll give it a shot.

If anyone has experience with the quick flush unit please let me know.

Thanks
Old 03-24-2013, 01:55 PM
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It is a flush port, but Mercury calls for the plug to be reinstalled after flushing. So the quick flush deal would not be ideal as you would have to remove it after using unless it has some sort of check valve to prevent cooling water from draining back out. Th best way to flush any outboard is through the muffs so that the engine comes up to operating temperature so that the thermostats open up and allow a thorough flush.

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