that sucks man... how old is the motor/make?
did you do this in your yard or on the water?
did you confirm your getting spark after it cuts out?
if its easy to pop the distrib cap id look at if its getting wet, possible bad hose? (happened to me) sprayed water all over the motor the cap had a 1/4 full of water.
when you pull a plug see if it has any gas on the plug.
i still think its somehow related to gas or spark....in my non expert opinion
