The first posts in this thread had all the information he needed: check with the manufacturer.
He specifically said that his tires are listed as having maximum pressures of 32/36 psi front/rear, so why on earth would you suggest he run 33/36 psi? Your Yamaha (if stock) runs a 160mm rear. The 250R runs a mere 120mm rear. Different profile, different tire style, etc.
Here it is, handed down from the Gods themselves (i.e., Ninja 250R manual):
Recommended COLD tire pressures (front/rear): 28/32 psi
Paul, if you’re running tires other than the stock tires, or if you have an older gen Ninja, you’re going to have to check with the source. Otherwise, there’s your answer.