RedactedNarrative: On 7/20/2014 at approximately 7:45pm, operator tried to go out on the family's yamaha pwc. He pushed it off their floating dock. He then got onto the pwc. While drifting just off the dock, he tried to start the pwc. When he pushed the ignition button, the pwc exploded under him. This ejected operator from the pwc. The explosion caused 1st and 2nd degree burns to the legs of operator. There were not any other fires other than the initial explosion. Operator was wearing a type iii uscg approved pfd at the time. He had also had a us power squadron boating safety course. Operator was taken to the hospital where his burns were treated. He was released after his legs were treated. Alcohol and drugs were not a factor or present in this accident. 
  
  Upon reviewing the pwc, it is clear to see there was an explosion. The seat above the engine compartment was missing. The console around the steering column was ruptured and cracked. The inside of the engine compartment was slightly blackened. The air intake to the engine was cracked open. It appears that there were fuel vapors inside the engine compartment and when the ignition button was pushed, the vapors ignited. The ignition of the fuel vapors inside the engine compartment caused an explosion that in turn ruptured the top of the hull and passenger area. This led to operator getting burned and the destruction of the pwc. Fortunately there were not any secondary fires as a result of the fuel vapors igniting.