Tried starting with no air filter - no better
adjusted cable position and got about 1mm more movement - no better
Tried to take off air filer holder/elbow - no budge - as far as I can make out only 2 nuts holding it on but even getting a screw driver between the surfaces it won't move just keeps springing back - plastic joining to metal- can see/feel all round and sure there are no more points of attachment. - need a parts manual I think