Okay i drive the around about 25mins so the engine is very hot. When i go to squeeze the coolant hose from the radiator to the head there is no pressure. Im guessing its the water pump or the radiator cap. need advice i drive a 97 GSR.

 

Sounds to me like you already have the issue solved.

There is a pump that you can hook up to the rad to see if it's holding pressure. If it does then you need a new cap.

How many miles are on your water pump? They are suppose to be changed at 90k, but they should last longer with proper maintenance.

 

A. You don't have coolant
B. Your Thermostat is toast