Older Evinrude Spark

[borz170]

'76 85 hp 'Rude. When it comes to testing spark on one of these 4 cyl engines, how much voltage should be comming from each coil? Does this change at different RPM's? How do you check for spark strength, via multi meter?

 

[ezeke]

Re: Older Evinrude Spark

Test for spark on your engine with all plugs removed, using a tester that will allow a setting of 7/16" gap. The spark should jump the gap with a sharp blue snap. It is necessary to turn 300 RPM to fire properly on your ignition system which requires a fully charged powerful battery.

A good tester will allow you to see spark from all cyinders. You can make a simple one with a dry board and nails, commercially available units are more costly: http://www.iboats.com/Marine_Store/...**********.311454701--submit.x.18--submit.y.7

 

[R.Johnson]

Re: Older Evinrude Spark

You need a dedicated volt meter to measure actual voltage. It will generally run about 30,000 + volts.