RedactedNarrative: On 06/12/2021 at approximately 0723 hours, there was a report of a boat on fire at the 4 Lane Boat Ramp at Lake Pleasant Peoria, AZ 85383. At approximately 0829 hours, I arrived on scene contacting Peoria Fire Engine 199 and the operator of the watercraft. Peoria Fire advised the boat was fully engulfed and majority of the fuel was burnt up. The operator was identified as OPERATOR 1. OPERATOR 1 explained he launched the boat and maneuvered it to the south side of the dock to wait for his friend. While waiting for his friend floating along the side of the dock not moored. The boats engine cut off. OPERATOR 1 tried re-starting it and was looking at the motor when fire shot out of the engine into the lower part of the boat. Moments later the boat caught on fire. OPERATOR 1 got his life jacket on and jumped overboard swimming to shore. The boat became fully engulfed and was later put out by Peoria Fire. No injuries were sustained, and multiple items of property were lost in the fire. When I arrived at 0829 hours, OPERATOR 1 was already attempting to trailer the watercraft and remove it from Lake Pleasant.