On May 10, 2001, about 1730 eastern daylight time, a Champion 7EC, N4737E, was substantially damaged during a forced landing near Monson, Maine. The certificated student pilot sustained minor injuries. Visual meteorological conditions prevailed and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91. The airplane was equipped with floats. The student pilot stated that during the preflight inspection, he checked the fuel and oil quantity. However, he did not examine any fuel samples for contamination. The student pilot started the engine, and let it idle for approximately 10 minutes. He then circled Monson Pond twice and tookoff about 1730. During the climb, the engine lost all power, and he performed a forced landing into trees. During the impact, both wings folded aft, and the floats separated. A Federal Aviation Administration (FAA) inspector examined the wreckage. He stated that the accident flight was the first flight after winter. During the examination, the inspector observed approximately 2 tablespoons of "watery sludge" in the gascolator. The inspector added that the pilot held his student certificate for several years, but had no current endorsements from a flight instructor.