I agree with everything that has been said in this thread. However, the model that I am trying to resurrect from 1998 does not have a firewall for attaching a firewall mount. It has a thick plywood beam mount built in. The Vibradamp mount is attached to that and consists of only the beam bits, not the T bits. I am stuck with trying to get the Vibradamp mount to work properly OR I just ditch the model and go electric with a new model.
So far I have been through three sets of isolators from Ohio Super products and the YS 140 FZ is still being set up.


My engine mounting for YS 140 FZ

.