Four a few problems with it. I figured the vibration when moving was the old style chain tensioner but it wasn't. My track was hitting the steering post bolts and now has one snapped off and the other loose. So back apart it will come to address this and I bought a roller chain tensioner I will have to fab in.
As for clutching I have a yellow green comet primary spring 44.7 grams and a red secondary, not sure what helix?
When it takes off the primary barely moves and the secondary sheaves dont move apart at all.
So more primary weight less spring. Move secondary spring to loosest hole and a steeper helix
Had The wrong primary spring due to the age of the unreadable colors on it. Fortunately I had a box of old springs from an auction sale. So I put in a silver which should be a tad less than the green sliver that I think was in it
Also had a yellow secondary spring in the box and a 51° helix to replace the red and the 49°
Now just the new roller chain tensioner on my next days off