1987 mercury 75

R

racerone

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An 87 model would carry a serial # starting with --B110054--- I think.----Internal reed valves direct air and fuel to the 3 crankcases.----Did that beginning in 1972.
 
redneck joe

redneck joe

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Thats what he sent me, and if it matters in the listing it shows as a mariner in the pics.

Hoping to get today after lunch to look over in more detail.
 
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redneck joe

redneck joe

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racerone said:
Perhaps the 6 he read is really a ---G----Ask seller to re-read it perhaps.
Click to expand...
here is the best i could get cleaned up, and looking at serial charts I say G even though it looks like a B to me but I am not familiar with the merc font used back then.

1745345612806.png
 
redneck joe

redneck joe

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side pics. The head and the mounting are grey but below that is black and while painted (can see the drips) i believe it is a merc lower.


1745345803639.png

1745345833530.png
 
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redneck joe

redneck joe

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Forgot to post all cylinders @ 118 to 119. Lower unit fluid old, a bit dirty and no water.

No spark, again claimed since took controls off...only wires disconnected are the tach and another set prob used to be the trim.
 
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redneck joe

redneck joe

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Looks like a brand new tilt unit I $1100, ebay half that. As I mentioned sparky box available new and whole system on ebay for a few bucks.
 
redneck joe

redneck joe

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So......

I now have a whole boat on a trailer with a 75 mariner sitting I my driveway. No cash has changed hands.
 
jimmbo

jimmbo

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redneck joe said:
OK got the serial number and it is a 70, not 75. I did read a 12 year old post here that the 70, 80 and 90 were essentially the same save the carbs. Something about ports on the 90. Would be great to grab a couple more HP if it is actually possible? Ebay has a complete ignition system including stator that showd I covers all those hp models.
Click to expand...
The 3 engines share the same Displacement. HP differences are usually more than just a different Carb, Porting and Exhaust Tuning among other things, are almost always Different.
 
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Mc Tool

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Can you get port window maps for different popular model outboards? I have used motorbike version b4
 
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