how to stop joints being springy
I'm trying to make a motorcycle. I've added several RigidBodys and am trying to connect them with HingeJoints and SliderJoints. But when I play the project it's like the joints are made of rubber bands, not constrained to turning about the axes or sliding in the direction they're supposed to. I've tried adjusting the settings for the various joints but they don't seem to do anything. Is this broken or am I doing something wrong?
I've tried searching, found a few other similar questions that hadn't been answered. I haven't been able to find any tutorials on using 3d joints.
Here's a copy of my project if it helps: