This weekend i was riding my 03' 400ex and may have gotten some moisture in my intake. I was riding with a stupid K&N air filter with no box. i know, stupid. I was riding for about 4 hours with no problems. i let it sit for maybe 45 mins befor riding again. i rode for about 100 feet befor i stalled. now i couldnt get my bike started, it was turning over and wanted to start but it wont. i took off the filter and intake tube and saw that there was moisture inside the filte and tube but not the carb. i checked the oil and there was no trace of water in the oil either. i dont think its the spark because the boot was on. Not sure whats goin on...andy ideas?.. Thanks

 

Drain your carb bowl just make sure that there is no trace of water at all in the fuel system. Also double check your ignition system just to be sure.