I put a 94 ninja 600r engine in my 86 ninja. nearly twice the hp now but it runs to hot.i need to know the coolant capacity of a 1994 ninja 600r

Head gasket ? What engine ? 3.1 l v-6 ? Coolant in the oil ?

0.15mm on intake and 0.20mm on exhaust

I think the engine coolant temp sensor or coolant thermostat has failed.

cooling fan does not come on at all

As your diagnostic flow chart will tell you now you need to test the coolant sensor(3 wires sensor in water jacket screwed into steal pipe near intake manifold) Most likely out of range.If the first part of your pinpoint test had failed then there might be a possibility of and open inside the pcm but since it passed the first test then I don't think they are a related concern.

you may have an air lock in the water jacket and it needs the air blead out if you blead it and its still running hot the head gasket may be leaking?

Over heating can be caused by a faulty thermostat and or weak water pump and dirty radiator and old antifreeze or the radiator fan now working when at idle but should not over heat when driving. Service the cooling system if it has never been serviced before. Replace the thermostat, buy some radiator flush to clean out the radiator and heater core. Just follow the instruction and replace the antifreeze and make sure it's a 50/50 mix water/antifreeze. If you not sure how to mix it 50/50 you can buy them 50/50 premixed. Water boils at 100'C so you need antifreeze mixed with it but antifreeze does not have the same heat transfer as water so you cannot run 100% antifreeze cause it does not transfer heat fast enough and you over heat. Good luck and hope this helps. Keep me posted, Be glad to help, once you service the cooling system and your still over heating, then we look at the water pump.