Hmm I wonder if mine had a twist, im curious though how he knew there was a twist in the belt once it had been kicked off.
Your right on with the 7" measure, I checked the diagrams etc, will adjust the tension tomorrow morning if it needs it.
I intend on re-routing the fuel lines, never liked the way they isolate both tanks by a switch, Ill get a 3 way junction to replace the valve. The tanks will drain equally which is much better IMHO
That's interesting you have had a demo on the gravely & good to hear your thoughts, I never had the opportunity.