RE: ECHO 610
I made a square hollow mount and put the ignition and coils inside it...Never did find the pictures....The mount is easy, just drill the case screws all the way through and run 10-32 bolts all the way through the case from the front into the mount plate....[8D]
The cylinders can be turned 180 degrees but it takes some bolt hole mods and there are locater pins in the way...Still looks a little funny, the plug angles are different but at least are on the same side..The carb can be mounted vertically on a new block made from G10 epoxy board, then there's no funny linkage to the throttle servo....
All the threads on the engine are metric, you might want to replace the 10-32 mount screws in the corners with 5mm x .8 screws, the diameter is a little larger and will hold better..10-32 screws will strip out you go too tight....