I'm on an Enya kick. I found a 19V in my hoard, does anyone know the screw size/pitch for the bolt hole in the middle of the exhaust? I've tried all the screws I have and they all resist enough where I don't want to force it but I know one of them goes in there.

Thanks,
MM

The screws for the 19V were 3x7mm but the screw in the center of the exhaust was to hold the baffle plate in place for the r/C version. If it doesn't have muffler dimples on the exhaust then it uses a clamp on muffler. So now it gets interesting. I have in my hands an Enya 19/5 maintenance kit with new gaskets screws thrust washer,prop washer and nut, NV retainer, throttle stop screw and who knows what else. Also have the clamp on muffler but they also have a weird screw thread. I do have one of those but the screws will need a little work but they thread in fine.
Any interest in this let me know.