CDI Electronics Outboard Ignition Troubleshooting Guide

78 TROUBLESHOOTING GUIDE - Mariner Mariner Troubleshooting Mariner 2 HP One Cylinder Engines 1977-1989 With Points Ignition SERVICE NOTE: These engines have the ignition coil under the flywheel. This system has the primary and the secondary side of the coil be separate, as the points drive the negative side of the coil to ground, causing the coil to generate spark on the secondary side. NO FIRE: 1. Disconnect the White Kill and retest. If the engine now has fire, the stop circuit has a fault. 2. Check and clean the points. Point gap setting is 0.014 inches. 3. Check/replace the condenser. 4. Replace the ignition coil located under the flywheel. HAS FIRE BUT WILL NOT RUN: 1. Check the flywheel shear key. Replace if sheared. 2. Reset the sparkplug air gap to the factory specification of 0.024 inches. 2. 5 and 3 HP One Cylinder Engine 1990-1992 With Points Ignition (Type I) NO FIRE: 1. Disconnect the Black Kill and retest. If the engine now has fire, the stop circuit has a fault. 2. Check and clean the points. Point gap setting is 0.012 to 0.016 inches. 3. Check/replace the condenser. 4. Check the ignition coil’s primary resistance from the Black/White wire to engine ground. You should read 1.5 ohms +/- 0.2 ohms. 5. Check the ignition coil’s secondary resistance from the sparkplug wire to engine ground. You should read 4.25K ohms to 5.75K ohms. If out of this range, replace the ignition coil. HAS FIRE BUT WILL NOT RUN: 1. Check the flywheel shear key. Replace if sheared. 2. Reset the sparkplug air gap to the factory specification of 0.040 inches. 2.5 and 3.3 HP One Cylinder Engine 1993-2006 With ADI Ignition (Type II) (823034) NO FIRE: 1. Disconnect the Brown Kill and retest. If the engine now has fire, the stop circuit has a fault. 2. Check the Charge Coil resistance. You should read from 300-400ohms from the White wire to engine ground. 3. Check the ignition coil’s primary resistance from the Black/White wire to engine ground. You should read 1.5 ohms +/- 0.2 ohms. 4. Check the ignition coil’s secondary resistance from the sparkplug wire to engine ground. You should read 4.25K ohms to 5.75K ohms. If out of this range, replace the ignition coil. HAS FIRE BUT WILL NOT RUN: 1. Check the flywheel shear key. Replace if sheared. 2. Reset the sparkplug air gap to the factory specification of 0.040 inches. 3. Verify the cylinder compression is over 90 PSI. ENGINE IDLING VERY HIGH WITH THE THROTTLE PLTES CLOSED: Replace the CD module as the internal bias circuit is shorted. 3.5 and 5 HP One Cylinder Engine 1977-1992 With Points Ignition (Type I) NO FIRE: 1. Disconnect the Black Kill and retest. If the engine now has fire, the stop circuit has a fault. 2. Check and clean the points. Point gap setting is 0.012 to 0.016 inches. 3. Check/replace the condenser. Check the ignition coil’s primary resistance from the Black/White wire to engine ground. You should read 1.5 ohms +/- 0.2 ohms. 4. Check the ignition coil’s secondary resistance from the sparkplug wire to engine ground. You should read 4.25K