have a 1978 inline 6 115. Im waiting on the manual, but while cleaning her up, Ive got a small blue rubber coated cylinder (size of my thumb), attatched to the power pack on the port side (but dosnt seem to be part of it), wires running into the power pack at the front of the engine. <br /><br />the wires are cracked and badly corroded, and about to fail. anybody have any ideas on what this cylider might be? <br /><br />thanks