Firstly thanks to jeffk95z for sending me the collated instructions and photos from this Thread very easy to follow except I have a question regarding the rocker Arm shaft.
I used the rocker arm shaft method and pulled it out completely ( Yes I know the instructions in the thread say do not completely remove the shaft but I missed that bit

)
Is there anyway to tell which way the rocker arm was in the there originally , maybe some wear marks etc....? I get in can on only go 2 ways so 50% chance it goes in the same way
Valve check specs
2010 450FE with 6600km 180 hours
Inlet Valves both within spec
Exhaust right side within Spec
Exhaust left 0.10mm fit and 0.12mm did not fit also tried and 0.11mm which did not fit - out of spec
The Shim I removed for left Exhaust measured 2.81mm ( it actually has 2.x5 stamped on it. the number after the . is worn off )
So off to the KTM store for a 2.60 shim or there about
cheers
Marc