On August 6, 1993, about 1200 central daylight time, a Cessna 150M airplane, N714LZ, experienced loss of engine power during cruise and struck a wire during a precautionary landing near Blue Rapids, Kansas. The solo commercial pilot reported no injury. The airplane was substantially damaged. Visual meteorological conditions existed at the landing site. The personal cross-country flight originated from Atchison, Kansas, time unknown, without a flight plan and operated under 14 CFR 91. The pilot stated that during cruise he experienced a loss in engine RPM. When the application of carburetor heat resulted in a further reduction in engine RPM, the pilot pushed the carburetor heat off. The wreckage was removed without being inspected by the FAA. A conversation with a local mechanic who looked at the engine of the accident airplane approximately two months after the accident, revealed what he believes was a water stain line in the fuel gascolator. The mechanic could not be certain that the stain line was actually caused by water. He stated the gasoline he drained from the wing tanks was automotive gasoline and he did not see any evidence of water. The engine was not disassembled or run.