Symptoms bad switch box outboard

When i put a multimeter up to the switch box with the settings for 200V DC test. Check the voltage on the red and white Ignition wires at the CD Unit.

You can swap the two boxes and see if that isolates the bad box.

Symptoms bad switch box outboard. Originally Posted by bone9999. I have a 82 merc. 40 hp which was just diagnosed with a faulty switchbox by CDIs tech support.

This was a brand new switch box which was replaced no more than a month ago due to a weak spark and voltage output issues. My question is - Would a very small amount of voltage on the kill switch wire. Mercury Outboard Switch Box Failures.

When a spark test fails on one side of the motor disconnect the Bias wire and retest. If spark is restored then the box that WAS sparking has a bad Bias circuit and is blocking spark on the other box. IF these are CDI boxes it.

But the most easily visible and common sign of a bad stator on the outboard is when the engine fails to start because of weak or no spark and the stator is covered with salt corrosion. What Are The Symptoms Of a Bad Stator On Outboard. I am pretty sure that i have a bad switch box but want to confirm.

When i put a multimeter up to the switch box with the settings for 200V DC test. I get inputs reads on the incoming wires of. 144733 1467 74 145 and a couple register zero.

The four outputs that go. Every electric start outboard has an ignition switch and it will open and shut the starter solenoid. It also turns the engine off by shorting the CDI unit power pack or switchbox to ground.

A faulty ignition switch can cause all sorts of problems with your ignition system and is more often than not overlooked. Intermittent complete failure of the systems powered through the ignition switch is the main symptom of a bad switch. Sometimes this can manifest itself through only the starter circuit with the accessories circuit still providing power to the lights etc.

Mariner switch box circuit repair id parts on pic. 1 88 mariner 45hp switchbox. What would cause a wet plug.

Trigger switchbox coil - what r the symptoms. Switchbox heat issues - put rubber strips between head and box. 2nd switch box to go.

Stator or switch box. Can a faulty trigger damage a switch box. Every electric start outboard has an ignition switch and it will open and shut the starter solenoid.

It also turns the engine off by shorting the CDI unit power pack or switchbox to ground. A faulty ignition switch can cause all sorts of problems with your ignition system and is more often than not overlooked. Your outboard switchbox sends voltage to your ignition coils or CDMs to provide a good spark to the spark plugs at just the right time.

The switchboxsare energized by the stator under the flywheel. A faulty or failing switchbox can cause one or more symptoms. Engine fails to run and has no spark.

This is one way to bench test a switch box and you also can do this on the outboard motor. This is one way to bench test a switch box and you also can do this on the outboard motor. Bad ignition switch.

This is one of the problems experienced by many classic Mustang owners. The problem also has occured in reverse ignition switch is on and the engine just simply dies. The most common symptom of a bad ignition switch is a car that wont start or a stallin engine while driving.

If you notice a blinking instrument cluster or if your ignition stays on after removing the key its also a strong sign its bad. These are the most common things you may notice when you have a bad ignition switch. You can tell the stator is bad based on the symptoms of the engine.

Though it wont be a clear and cut situation. You will need to test the stator and well cover that in a second. You can know you have a bad stator by looking at it.

If the stator is covered in salt and corrosion. Or you see it has melted or burnt windings. These are the symptoms you will face 1.

Your engine will idle alright and start up ok and when put in gear may or may not run and stall 2when you speed up it wont go any faster than 3500rpm and stall and if it does go up it will be erratic and engine will cut off. A faulty or failing trigger can cause one or more symptoms. Engine fails to run and has no spark possibly on only one cylinder.

Engine is hard to start especially after sitting from a run. Engine is low on power or has a miss. Triggers are very reliable Triggers can fail for one or more of the following reasons.

Remove the blackyellow kill Wire from the rubber connector to see if the pin is broken. Check the kill circuit in the pack by using a jumper Wire connected to the blackyellow Wire coming out of the pack and shorting it to ground. If this kills the engine the kill circuit in the Harness or the boat is bad or the Ignition switch is bad.

The switch box could be bad. This is the reason I use only Merc parts. Post back with questions.

I have a mercury 115 hp outboard motor i have replaced the stator and switch box and checked the trigger and it is fine i am getting some spark when i begin to. Symptoms of a Bad Coil on an Outboard Motor. If your coil does go bad there are several symptoms you might notice.

Engine Experiences a Hard Starting Condition. When the coil becomes weakened and damaged it is unable to produce the energy that it once did. Here is a test for you.

Swap the stator leads end to end on the switch box Red with redwhite and blue with bluewhite. If the problem moves to the other cylinders the stator is bad. It the problem stays on the same cylinders the switch box is likely bad.

If it is the switchbox you really should replace both of them for a couple reasons. The CDI is not easy to diagnose because the observable symptoms of a faulty CDI box can lead to different directions. Sometimes a bad CDI does not cause sparks at all.

Again when a CDI box is about to go bad it can lead to misfires issues with starting rough running or even stall the motor. Disconnect the Mercury Outboard switch and reset if the engine fires replace the Mercury Outboard switch. Check the voltage on the red and white Ignition wires at the CD Unit.

If the voltage is less than 9 12 volts during cranking there is a problem in the battery s or the Ignition switch Box. Sounds like a switch box. You can swap the two boxes and see if that isolates the bad box.

Probably not the stator. You would loose spark on all 6 plugs either high speed or low speed. The trigger circuit controls one cylinder on one side and 2 on the other.

The other circuit controls the other 2 on one side and 1 on the other.