Vessel was traveling from the main channel outside Callville Bay into Callville Bay.  Near the Callville Alpha buoy, the pilot noticed the port engine was smoking and shut down the engines.  Another occupant of the vessel utilized two on board fire extinguishers and extinguished the fire.  Investigation of the engine suggests that either the oil pump or an electrical harness near the oil pump short circuited causing the fire to start.
North Las Vegas               