Just had a fire today on my 1991 Hunter 30. Started in the engine compartment the positive wire coming from the battery rubbed on the motor mount and arced setting the wire insolation on fire then caught the noise insolation around the engine compartment on fire. CHECK your positive wire and the motor mount in the back right corner. Should be behind the panel accessed from the head. It was exciting fighting fires and sailing at the same time. First sail for the year a was motor sailing let the engine run for awhile.