I remember at SZ seeing Trapps DMD in action and since his is the only other one I've seen, I don't have much to go on here.
When the engine was revved up, the rubber piece expanded with the RPM's. Mine doesn't do that.
Should I be worried? Can this be bad? or is mine working right and his wasn't?
I've got about 150 miles on it so far and am keeping the RPM's down. Well, trying to anyway.
Thanks for any advice,
Mike