There is a placard on the bike listing the correct pressure. Normally it is on the rear swing arms.
If you look on the cap covering the master cylinder it will list the correct fluid.
Normally it means change the oil/filter but it can mean other things. Your owners manual will tell you.
Under the dash on the drivers side, left of the steering wheel, above the foot rest.
Red always mean stop. There are many warning lights next to the speedometer. Check engine will look like an engine and a flashing check engine light means you have an engine cylinder miss and should stop driving the car until you can have this fixed. You will ruin the catalytic converter and O2 sensors if not. There is also the oil pressure and charging system lights which mean stop and have this repaired. All these are on the left side. On the right side is the brake light which means there is a problem with the brake system.
SAE 5W-30 is what Honda recommends and that is what you should use conventional or synthetic.