Went to Dyno yesterday.
Frustrating day found that the Power Valves PVs (small valves in the Exhaust ports that vary the size of the Exhaust Port) stopped opening
Cables that operate the valves came loose
I found this out as had trouble getting any meaningful AFR readings so followed the EGTs which were fairly low
after the 4th Run, Jetting changes did not make any difference, revving out but no power gain, had us scratching our heads
then found the loose cables
no damage done just could not do any actual Tuning.
Oh well I am back in the shed and have put everything back in place and readjusted the PVs and tightened
everything up properly!