39 oz with muffler ready to go on the older ones or 41oz. with the newer ones the older ones put out a little more power and weighs less, had the older one on a h9 90 size funtana at 10 lbs it had slow unlimited verticle . This is on straight gas with the lightened flywheel and lightened muffler and the fat trimmed from motor. I could probably squeeze a couple more oz. that I can see. I checked again and I am not sure what the older one is I have a unconverted one at the hangar I will go see what the model # is. later today.
I think we can get you set up with a pair for under 5lbs. ready to go. will you have the clearance for a 16in. or 18in. prop what about magneto clearance.if you want to run magneto and dont have the clearance thats ok I can move it to the rear and will and 1.5 oz.



Darin