5

Set the plate in position with 
bolts through the front motor 
mount holes and mark 
the back holes. 

6

Center-punch the frame
 in the center of the 
slotted hole of the plate.

7

Drill for a 1/4-28 tap / bolt. Usually a set of taps & dies come with a chart telling what size drill to use for each tap. If not, the tap itself should say which size drill to use. I am using fine thread since there isn’t much material here and a coarse thread hole would only have 1 or 2 threads. Using fine thread gives twice as many threads in the hole. Be careful when you put in the bolts. It will be difficult later to drill and heli-coil the holes if you strip them out.

8
Tap for 1/4-28 button head 
bolts. Be careful as 
you tap. A broken tap 
here is a major pain 
to remove. 

9
Insert bolts and snug 
up to make sure 
everything fits. Now 
set the plate aside so 
it doesn’t get scratched. 

10
Now install the neck 
bearing braces.