A SPARK CHECKER

When probing for motor difficulties, there are times when a "quick" check of the ignition (sparking) system is desired to minimize time allotted for proper diagnosis.

The spark checking devices (2 and 4 cylinder models) shown here can be used quite effectively in this respect - easily installed,

it "tells" you in a moment whether or not all cylinders are sparking. It must not, however, be misconstrued as a spark tester - it's merely a spark gap arrangement to accomplish a "quick" check of sparking to save time and as such, an aid in "cutting" shop operating costs.

Spark checker 2 cylinder - $1.95 each net.

Spark checker 4 cylinder - $3.75 each net.

Order directly from:

The Stevens Experimental Co.
P.O. Box 119
Waukegan, Illinois

Sincerely,

JOHNSON MOTORS

Jack Penland
Service Promotion Manager