Why is my Mercury outboard not getting spark?

Why is my Mercury outboard not getting spark?

If one cylinder is not sparking, swap the White/Green and Green/White stator wires and retest. If the problem moves to the other cylinder, the stator is likely bad. If no change, replace both CDMs. A continued no spark condition on the same cylinder indicates a bad trigger.

Why would a boat motor have no spark?

Engines with no spark or intermittent spark on one bank can be caused by a faulty stator. Nestled in with the stator under the flywheel is the trigger (or timer base).

What to do if there is no spark at the ignition coil?

Check for voltage output at the ignition coil. Disconnect the ignition coil wire from the distributor and install the spark tester to the wire and ground the tester to the engine. Crank the engine for a few seconds. If there’s spark, the problem is with the distributor cap or rotor.

Why is there no spark at the coil axle?

If there’s no voltage, check the wire between the ignition switch and the coil and, if necessary, the switch itself. If there’s voltage, the problem may be with the pickup unit. If the pickup is good, then the problem may be with the ignition control module.

How to fix Mercury outboard no spark step by step?

– YouTube How To: Mercury Outboard No Spark Step-By-Step how to fix with minimal tools. If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

Why is there no spark at the tip of the spark tester?

While the engine cranks, you should see a bright, blue spark at the tip of the spark tester. If there’s a good spark, including the rest of the cylinders, the ignition system is working properly. If only one or a few cylinders have a weak or no spark, the problem is in the secondary side of the system.