valve problems

Anyone help me understand what could be the cause of not being able to get the right measurements of the valve adjustment? The manual states exhaust 0.17-0.22mm and I’m only getting at most a 0.008 mm feeler in there. On the intake it’s supposed to be 0.10-0.15 mm and I’ll be damned if I can’t...

I have a Honda CRF450R and I am feeling to get all the information and knowledge before its too late to haunt by a big issue on my bike. I do not have any idea of its identification or Symptoms of Tight Valves Motorcycle. I am really waiting for your answer here if anyone really has a good grip...