RE: Test Bench
What I do is run your pushrod thru the rubber bands holding your tank..I have an Enya 120 4/s and K&B 61 they work just fine
hooked up that way.Just pull or push the pushwire,to rev or idle.Make sure all nuts and bolts are tight and stand behind the engine. I used two pieces of aluminum angle brackets mounted to plywood,drilled holes for the mount.
Pappy