
Removed the trailing truck and suddenly the engine started behaving. Now I just need to figure out what on earth is up with the trailing truck, which should be a simpler task.
Or not...
Okay, after some attempts, here's my two setups for the trailing bogey:
https://drive.google.com/open?id=0B0Soy ... GxYZENYVkE
https://drive.google.com/open?id=0B0Soy ... XlWbUJTTlk
Bog3 is the ideal setup as far as I'm aware, trailingtest is an attempt to make it work and so does not have the pivot offset because it's my first 2-wheel truck.