Kohler MAGNUM M18

SECTION 2
SPECIAL TOOLS
IGNITION SYSTEM TESTER
Magnum engines use a state of the art electronic ignition module. A simple tester can be used to determine if the
ignition module is functioning properly.
Spring Clip P ENS Additional Components For
=Y Twin Cylinder Engines
Spark Plug
«| 1/2" 1.0. Fuel Line
Y 1-1/4" Long
4)
Д
£F | |
18 GA. Wire |
Remove Ground
Electrode
| Spark Plug
0.025" Gap
Spring Clip
Alligator Clip
1/2" 1.0. Fuel Line
1-1/4" Long
Figure 2-3. Electronic Ignition System Tester.
For Twin Cylinder Engines 5. Obtain another new RJ-8 or RCJ-8 spark piug.
(Models M18 and M20) Set the gap to 0.035”.
1. Obtain a new RJ-8 or RCJ-8 spark plug. 6. Obtain another large spring clip. Attach the spring
clip to the new spark plug. Connect the alligator
clip from the single cylinder tester to the screw
terminal end of the spring clip.
2. Remove the ground electrode from the spark plug.
This gives a spark gap of 0.13". This large gap
simulates the spark required under actual engine
conditions.
7.
Install
a
1-1/4”
length
of
1/2"
1.D.
fuel
line
onto
the
3. Make a lead assembly using a large spring clip, threads of the new spark plug.
an alligator clip; and 18 gauge wire as shown.
4. Cut a 1-1/4" length of 1/2” 1.0. fuel line and slide Using The Tester
it onto the threads of the test plug. The fuel line
will shade the firing tip to make the spark more Follow the instructions given in the “Electrical System
visible. and Components” Section.
2.6