MMarc, you have an excellent point.  This is the first small motor i have had with bolt holes.  Thank you 

Catfishtoon post=110445 wrote: I really don't have enough transom to raise it up much.  I want as much height as possible to reduce my total draft.  Some of the lakes we brem fish in are pretty shallow in spots.

If you removed the metal stop spacer I would think you could go up 1".

You really don't need that stop spacer " if that what's it there for" Is the motor is bolted through the transom?
 

I really don't have enough transom to raise it up much.  I want as much height as possible to reduce my total draft.  Some of the lakes we brem fish in are pretty shallow in spots.

I would use a block of wood. Cheap, easy, done.
I raised my Merc 400 1-1/4" with a  block of mahogany. And plan to do the same with the Merc 1000.

Paint sticks work good for dialing in the hight.

Just to give you some ideas...

I raised mine by first cutting some shims to fit under the motor brackets.  I then ran the motor as Locomotion recommends to see what the effects/benefits were at different height levels.  You can see my motor tests on YouTube if you search for user "jmh55dr" on YouTube.

In the end, I used a scrap of red oak bullnose window sill that I had laying around the house.  I know red oak is not recommended for water applications, but the trim is at the top of the transom and doesn't spend any time below the waterline.  (I used white oak for the outer transom that spends time below the waterline.)  I attach some photos of the final rigging on my boat.  Note that I have the benefit of a 3/4 inch thick aluminum "plank" that the previous owner had fit across the inside of my transom!

You could have a piece of aluminum broke that would slide down over your transom then weld end caps on it use the original bolt holes in your transom to bolt it down you would have to slide a piece of wood up in it to hold the clamps of your motor 
Charlie 
something like this 

I would run it first and make sure that it needs to be raised.
Close up photos of the motor where it mounts on the transom front and back would help.

Advise or bright ideas wanted.  

How would you go about raising the motor up a little over an inch?  

Jack plate 
Add to transom (I just redid it....)
Shims?

a little better pic of the keel. I spent the afternoon with gluvitand a small paintbrush painting rivets and seams. The keel is the only piece I did not get to. Next time I mix some up, it will be first on the list.

This is the only picture I have of the keel right now. Will get another soon.