How To Test A Mercury Switch Box

Juni 21, 2021 Posting Komentar

Stator or switch box. Use one of the links below to access the Parts Guide pdf or Parts Catalog.

Mercury Switch Box Wiring Diagram Mercury Outboard Electrical Wiring Diagram Diagram

Trigger switchbox coil - what r the symptoms.

How to test a mercury switch box. Mariner switch box circuit repair id parts on pic. We know the stator is good or you would have no spark. Swap the stator leads end to end on the switch box Red with redwhite and blue with bluewhite.

If spark is restored then the box that WAS sparking has a bad Bias circuit and is blocking spark on the other box. The colored insulation around the terminals can have some cracking and even a little missing that is common by this time for these engines. If spark returns then the box that WAS FIRING has a Bad Bias circuit and must be replaced.

So that leaves the coil or the trigger. A coupla winters ago I bought an engire 40 amp system stator trigger switchboxes coils harness and anything else attached to the wires for 180. 1988 mariner 45hp switch box test.

If its bad meaning constantly pressed you should read zero ohms. 2nd switch box to go. All Sierra aftermarket parts are manufactured to meet or exceed OEM requirements.

Mercury Outboard Switch Box Failures. What would cause a wet plug. Switchbox heat issues - put rubber strips between head and box.

Item is available. So if you have had a stator failure in the past and are now having switch box failure then replacing BOTH switch boxes is probably the best thing to do if you want to avoid that ever happening. Disconnect the WhiteBlack jumper between the switch boxes and check the resistance from each boxes WhiteBlack terminal and engine ground.

1976-80 4 HP model 40 1974-86 75 HP. Outboard motor electronics are sometimes troublesome particularly since major systems like the power pack may control everything from instrumentation to the timing and synchronization of the motor. 47 out of 5 stars.

Spark Plug Wire 7 inch - Mercury Mariner. Stick a meter across the wires. It requires at least 9V at cranking.

Ships same day if. CDI Mercury Replacement Switch box 114-6222 features. You should read 14-15000 ohms on stock switch boxes and 9200-9800 ohms on racing switch boxes.

When a spark test fails on one side of the motor disconnect the Bias wire and retest. If its good you should read an open. One method requires you to use a multimeter to test.

Order the correct Switchbox for your motor. Select your switch box for 2 cylinder mercury boat engine. You will need two jumper wire volt meter and a spark tester.

Switchboxes are located in the Parts Guide on pages 7 through 10. On a 332-2986 switch Box check the voltage on the brown terminal whiteblack for 332-47960 where the Trigger is hooked up. When a rod exits a block unless its 1 or 3 and goes out high the switchboxes usually survive.

IF these are CDI boxes it is allowed to replace only the one box. If it is the switchbox you really should replace both of them for a couple reasons. You can test the Mercury power pack in either one of two ways.

It the problem stays on the same cylinders the switch box is likely bad. Mercury ignition switch box Mike you can test the kill switch. There is a way to test the switchbox.

DVA check between the white and black wires black and blue on 332-4796. Switch Box - Mercury 175-210hp Sport Jet. Your settings seem OK but I dont know if your switch box is bad but have you performed a spark gap test set at about 716 on each of your cylinders while running with muffs on.

MercuryMariner 1976 thru1980 4 HP Model 40 1974 thru1986 75 HP 1973 thru1985 98 HP Model 110 1977 thru1981 20 HP 2 cylinder outboard motors. This is one way to bench test a switch box and you also can do this on the outboard motor. Merc switch box test - YouTube.

Original Factory Mercury Marine Switchboxes. DVA check between the white and black wires black and blue on 332-4796. Ordered by 300PM CST.

Due to manufacturer policy OEM Mercury products can. 1973-85 98 HP model 110 1977-81 20 HP engines. Mark the box Bad Bias and sell it to a 3 cyl 75 - 90 HP owner it will work fine.

If youre getting a steady strong spark that can jump the gap on each cylinder without an obvious miss then I would think your switch box is OK. On a 332-2986 switch Box check the voltage on the brown terminal whiteblack for 332-47960 where the Trigger is hooked up. 332-7778 CDI Module Switch Box for Mercury Outboard Motor 50-275 HP Replace 332-5524A1 332-7778A12 332-7778A3 332-7778A7 332-7778A1 332-7778A6 332-7778A9.

It requires at least 9V at cranking. Worst case scenario you could clip one of the wires and test it. When it does it is usually the result of a past stator failure.

Sierra 18-5775 Switch Box The Sierra 18-5775 Switch Box is a replacement part for Mercury and ChryslerForce engines. Ignition Coil - Force 40-150hp Mercury Mariner 6-300hp Sport Jet 90-210hp. MAKE SURE THE READING IS THE SAME ON BOTH SWITCH BOXES.

Trigger - Mercury Sport Jet 175-210hp. Spark test is THE first step if a whole bank ids dead disconnect the Bias wire connecting the two boxes and retest. Switching the coils will tell you if it is a coil leaving the trigger just from the process of elimination.

3 6 cylinder outboards with ADI. Designed for boaters from CDI Electronics. Here is a test for you.

The switch box is new. That leaves testing the trigger with a DVA. Testing the trigger with an ohm meter doesnt always tell you if it is good or bad.

The terminals on the switchbox need to be firmly in place if they are not then dont use the switchbox. 1 88 mariner 45hp switchbox. If the problem moves to the other cylinders the stator is bad.

There is a simple DVA test.

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