ARCO Technical Points How to Determine the Correct Starter Rotation Left Hand Engine Rotation. This is the most common engine rotation found on today’s marine engines. This is the same rotation as automotive en- gines. Use these charts to determine the correct starter rotation needed. Right Hand Engine Rotation. This is not very common on today’s marine engines. This is the opposite rotation of automotive engines. i al —* _ Left Hand Engine Right Hand Rotation Engine Engine Rotation Viewed from the Flywheel End. a) foo a Netey Left Hand Engine Right Hand Rotation Engine Another way to determine the starter rotation is to inspect the cham- fer on the starter drive gear. The bevel will always be on the trailing edge. Clockwise Rotation Important Check Points Worn Out Battery. Batteries cause more trouble than any other component in a marine electrical sys- tem. Always make sure the battery is completely charged and load tested before replacing other components. Loose Connections. Be sure to check all the terminals and connections and make sure they are clean and tight. High Resistance. This is a very common problem found in marine elec- trical systems. Corrosion, undersized wire, or bad connections will cause low voltage to the electrical components. Low voltage causes high heat and will destroy electrical devices. Be sure to check for voltage drops. Incorrect Wiring. Incorrect wir- ing can cause burnouts. Always tag the wires when removing an electrical component. If you are not sure how to connect the wires call our technical department toll free at (800) 722- 2720. Loose Battery Clamps. Cable terminals must be tight. If the ends of the clamps touch at the top, discon- nect the cable clamps and shave the ends of the clamp jaws with a file so there is a gap. AUGUST, 2001 Page 1 of 1