hi guys,i have a kawasaki super jet 800 cc n yesterday i was riding it n all of sudden it stop n couldnt start again,i change the spark plug,clean the carburator n still couldnt start until after about 1 hrs of trying it did start but it gave me awhite smoke n brown water coming out the muffler,after it started well but it couldnt run well it was choking it couldnt take full gas,choking choking none stop,until i parked it,what do u think happen