What are the stock shim thickness for the intake and exhaust?

 

I didn't know they were shimmed. I thought it had normal adjustable rockers???????? Or are you asking about your yamahahaha?

 

On models with solid lifters and shim type adjustment, there really is no stock size. They're sized according to the measured valve clearance. The factory probably has a range of most commonly used shims, but that usually varies within several sizes. You have to remove the shim, the number stamped on it indicates the size. Alot of the time, the stamped number is rubbed off, then you have to measure them with a micrometer and go thicker or thinner depending on the measured clearance.