1996 JOHNSON/OMC 130 Hp V-4 Ignition - NO SPARK

[joe-doggs]

Dear friends, I have a 1996 Johnson v-4 looper that has NO spark on any cylinder. I check the kill switch circuit - that is not defective ( IE black/yellow not grounded when in run position). Question: What is "DVA"? In order to do the troubleshooting sequence the "books - OMC/Clymer/Rapair.com" says to read DVA peak voltage - what are they talking about - is this a spike that a DVM will not be able to sync to & read because it is so short ? Can I use my FLUKE MULTIMETER ?? I noticed that RAPAIR.com sells an "adapter" to allow multimeters to read "peak volts" - I gues my question is what is this thing "peak volts"

Any other ideas would be appreciated - thank you:%

 

[imported_lorin]

Re: 1996 JOHNSON/OMC 130 Hp V-4 Ignition - NO SPARK

DVA means direct voltage adapter. It's just another name for a peak reading voltmeter. The one I have is made by Stevens instruments. It's different from a standard voltmeter in that it's designed to read voltages that are not constant. It reads the peak or highest voltages from a source that gives a voltage that rises and falls. For OMC and other brands of conventional 2 strokes it's required equipment in service manuals for testing ignition components. A regular voltmeter wont be helpful on an outboard. I dont know about your Fluke meter but it sounds like the "adapter" converts regular volt meters to the peak reading type, which is what you want for working with an outboard. I've never heard of this adapter before but I've never heard of a lot of things.