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The Blind holes in the drawing are 6 inches down from the upper holes.
The Green holes are 6 1/2 inches down from the upper holes.
If we forget about the blind holes, all we really need to measure is the Green holes.
I recommend people layout the holes on the inside of the transom to make sure there is enough room for the washer, or partial washer as per the link below. http://www.whalercentral.com/images/B...t10-84.png
Measure down 6 1/2 inches on center from your top holes to the center of the Green holes on the inside of the transom and verify there is enough room. Most people don't have any problem drilling the Green holes.
Maybe I have to look at it differently, It's too late now. I mulled over it for a while and could not see how it could be done with the amount of space I have in the splashwell, but I was dying to float it and was afraid to start drilling. That"s a project for another year. I plan to update my page with new photos. I'm proud of the end result. I was just wondering if my motor had a different mounting offset than others. I plan to do something about it eventually, but first I'm going to enjoy it for a little while. Thanks for the input.
A simple way to fill any large bolt hole is to simply fill it with marine grade bondo type filler. Fill the hole flush. I assume you have already sanded and polished the gelcoat on your transom back to original color and luster. Now take a sharp spade bit about a 1/16" larger than the original hole and drill a hole 1/4" deep. The fill the hole with Specram Patch Past. Again sand and polish that area, and if the color matches the previous hole will dissapear,
Paul -- I think you misunderstood the article. It doesn't matter where the blind or auxiliary holes are if you fill those holes in your transom. That is one of the biggest reasons to do so.
Once you have four holes in your transom on a BIA lateral spacing, you can mount the motor where you like.
And no, your Yamaha would not have been way to high, it can have as much as 2-1/4" of space between the top of the transom and the motor.
For those of you that want to see how crbenny drilled his Green holes, view his personal page.
The holes came out just right with the adjustment of bending the bottom washers slightly just like the drawing in the FAQ section.
Anyone can follow those instructions so they can raise their current motor for better performance and economy.
This is also how you would drill the Green holes for a new motor installation.
Joe,
I documented my procedure with pictures as you requested. I've added more pictures and text, although my procedure write up is a bit lengthy. If you'd like me to fine tune, add or subtract text or photos, let me know.