A pothole on Napeague came close last week to killing a motorcyclist, whose bike, after striking it, went down and skidded for about 100 yards, the length of a football field, across Montauk Highway. East Hampton Town police said Carlos A. Buitrago of Springs, 27, was about a mile west of Napeague Meadow Road, headed west, when it happened, at about 10:40 a.m. on April 29. Man and motorcycle came to rest on the shoulder of the eastbound lane. Mr. Buitrago lost consciousness temporarily, police said, and was unable to recall anything about the accident.