Spark test help!

green_head_getter

Seaman Apprentice
Joined
Jul 15, 2010
Messages
41
Hey guys i bought a spark tester but dont know what to set it on. Directions only tell you directions for automobiles.
 

Ranger Danger

Seaman
Joined
Jun 28, 2010
Messages
74
Re: Spark test help!

I'm not sure what the markings mean, but try this:

Get a tape measure or a ruler, and measure 7/16 from the bottom part of the spark tester to the adjustable end. The red increments on a ruler are usually in 16ths.
 

Vic.S

Rear Admiral
Joined
May 4, 2004
Messages
4,690
Re: Spark test help!

America is going metric
implying that those are gap settings in mm? Would they really go as high as 40mm ?? That's over 1?".

Perhaps they refer to the voltage ; 10,000 20,000 30,000 40,000 volts
That is how THIS ONE is calibrated.
 

Troyb56

Seaman Apprentice
Joined
Jun 21, 2011
Messages
36
Re: Spark test help!

I have the same tester and the number 10 is just about 7/16 gap
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: Spark test help!

What mtr are you working on? There are different gaps for different mtrs.
 
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