leaking coolant out my header

[YZ125rider21]

well this kinda funny guys well here my battery died at the house warming up my nitrous bottle...came back to car notice battery was dead so i pushed it down one my hills at my hosue got it started notice i need gas so i went to gas station...knowing not to turn car off cause battery still needs charging so i leave it on to pump gas and i walked away for one sec and cam back noice it smoked everyone out the gas station trying to pin point the problem and i saw i was literally leaking water into the header....guys think this might be a cracked waterjet?...dont matter about this motor i guess time to drop in the zc b ut i just wanna learn what might have happen to this block or head

[krustindumm]

anything that could have leaked coolant into the cylinder. run a compression test.

[91civichatch2571]

If its leaking coolant right into your header, you either have a cracked head, real bad headgasket (or put one on wrong), or have you had a port and polish done? sometimes if they go too big, theyll grind a tiny little hole right into your waterjacket. do a leakdown test or compression. and pressurize the cooling syst. with a gauge and watch if it drops.

[YZ125rider21]

no port and polish but ya...thinking mite be the headgasket......would the bnlock leak oil if i didnt deck the block when i had it apart...thats the only thing i didnt have done cause it looked fine to me