ORIGINAL: DarZeelon
As to the actual gap, Bill; Jim is right and it should be about 4 thousands per inch of piston diameter.
With the Enya .46 having a bore of under 1", the ring you have should have a gap of about .004".
So yes, it does seem excessive.
This ring gap are for 2 stroke engine. The 4 stroke engine has a bit larger ring gap to allow the oil to enter into the crankcase for the moving parts need oil..
Ramjet told about his engine are the Enya 46-4C, this is a 4 stroke engine.
Ramjet..
Are your engine running well at idle and start easy each time, nice trottling? If the engine works well without problem, replace the ring not neccesary.
My Magnum XL 52 FS has ring gap at 0.03 mm and works well as it will be.