RedactedNarrative: V1 caught fire at Joe Carlucci boat ramp and sank.
  
  Upon my arrival, I met the operator/owner at the ramp.  He advised he just launched his vessel (V1 - FL 3471 PM) and was attempting to start it when it backfired and caught fire. He attempted to put the fire out with his fire extinguisher but the flames grew out of control. The vessel then sank at the ramp.
  
  JFRD 40 responded along with the Coast Guard to deal with any fuel leak.
  
  Allen's wrecker responded to the scene and recovered the vessel from the water.  
  
  No injury occurred at the incident.
  
  My investigation revealed the rubber seal around the engine melted and caused it to sink. 
  
  operator stated he was unsure if the vessel had a blower on it.  I issued him a warning citation for inadequate ventilation.