4.3 OMC troubles

[jlcjtc]

I had an earlier topic about my coil with an oil residue on the outside of it, I intend to change that. My next question is about the ignition switch and tachometer. I have been told that the tach and ign switch both can keep it from getting fire to the distributor. Any info on troubleshooting this will be greatly appreciated

 

[McKenzie]

Re: 4.3 OMC troubles

If you doubt any of that, pull all the wires off the ignition coil (except for the distributor's wires) and jump a wire from the battery to the positive ignition coil terminal. The engine should run like this, but if you have points or the coil requires a ballast resistor, don't run the engine too long like that, it will wear out the coil and/or points. Other than that, it should run like a charm if the tach or ignition switch were problematic.

 

[illini]

Re: 4.3 OMC troubles

The wiring diagrams for these items are not great, but do not over look the kill switch. I did and it cost me the better part of 2 months on the water. My boat would start and die immediately.

 

[jlcjtc]

Re: 4.3 OMC troubles

anyone know where the kill switches are at

 

[akriverrat]

Re: 4.3 OMC troubles

coiled red lanyard with black plastic clip. on shifter or dash. older boats might not have one.

 

[jlcjtc]

Re: 4.3 OMC troubles

would a 1987 have the kill swithches, i have a plug lookingthing under the dash, it is a renken boat. I bought a coil today, and it says something about a resistor, the one that is there looks really old and says nothing about a resistor

 

[McKenzie]

Re: 4.3 OMC troubles

If you haven't altered the wiring harness for you engine, you should have a purple/red wire that goes to positive ign coil terminal. The wire itself is a resistor. The longer that wire is, the more resistance.