I went ahead and got the new Saito 1.25a ... this thing is way cool compared to the .46 engines I've been using.

I just installed the motor mounts on the Edge and was looking at the spacing to drill the holes for the engine. The picture in the manual is kinda lame, but I think they are trying to say that from the firewall to the front of the silver drive flange (the thing the spinner back-plate goes up against) should be 125 mm.

Well, with my engine all the way back (with just 1-2 mm clearance between one of the black carb. mounting screw and the motor mount, I'm at about 130 mm (5 mm or 3/16" too far out).

I guess as long as I have a little extra cowl overlaping area to work with, I should be ok?

I'm wondering if yours in the same and if it's a problem (or what you did about it).