Motorcycle Repair: Honda mtx 125cc engine problems, 125cc engine, honda mtx

Question
Hi, I have a mtx 125 1983 model.
The problem seems to be water burning in radiator far to quick then sooner overheats. I've tried sorting it out by replacing new top end gasket, New head, new top end engine cover And there are no leeks seeping out of the engine itself. Thanks for your time and i would be pleased to hear for your opinions... Cheers!

Answer
I think you have a crack somewhere in the cylinder, or a leak which causes compression to go into your cooling system.  As the engine warms up, the crack opens up more, making the problem worse.  You will need to inspect the cylinder and head for any traces of leaks.  Good luck,  Jan