If you have the auto decompressor on the camshaft I would remove it or grind the small pad off the side of the rocker arm. It is a known problem area and can make it impossible to start. The manual decompressor then becomes essential if you have an accident damaged right leg like mine.
A quick edit, I notice yours has the cable to the kickstart so you can ignore that last bit.
'11 Triumph Tiger 800XC,