Quick question
I'm going to try to "fix" my BME 115 based on some of the posts I've read hear on RCU. Same Mid-range and 'inverted' problems as pretty much everyone else running the 'stock' set-up. Currently running the 'mod 2' carb with the "fix" performed by Keith (brass tube on the high passage to delay the onset of the high needle fuel flow).

I'm going to fit a Walbro SDC-80 carb on the engine, and 'stuff' the reed cage. The question is - how much do the reeds on an engine of this size open? What kind of clearance should be allowed for adequate clearance for the reeds before the edges of the 'stuffing'?

Guess that's just a general interest question too - how much do reeds actually open?

Thanks

BJH