A Sparker For Your Engine
(Page 3 of 3)
If you are too much of a 'Boob' to make this test
yourself, you might get your wife to hold the high tension lead and
the ground wire while you manipulate the primary leads to touch the
battery, explaining to her that you cannot hold all those wires at
the same time. I can assure you that this method will verify
whether the coil is good, however I need to caution you that your
bodily injuries might be far less if you just perform the test by
With just a flashlight battery for power, the shock that you get
is more of a 'startle' than a 'zap your finger off'
jolt that you get when you touch the spark plug wire of a running
Once the coil is proven good we can proceed to make the sparker
as follows: (See Fig. #6)
The simplest High Tension ignition system is the single spark
ignition system as shown in the diagram above. (Fig. #7)
You can build a small hardwood box of your own design to house
the coil, condenser, and battery.
If all you desire is a single flash spark ignition then you can
stop here. If you desire to build a Buzz coil spark ignition
system, then continue on to the next page.
Note: A condenser from any automotive or small gas engine
ignition system will work in the systems shown on these pages.
Direction of hookup is not critical.
For a buzz coil ignition system start with a mounting board
1/8' to 1/4' thick.
The board can be any non conductive material such as plastic,
masonite, plywood, or hardwood. Hardwood being the classic
Here is an alternate plan if you would like to make your own
Buzz coil points:
This is not a good picture-B & S coils on later models are
much smaller and a more compact unit can be built.
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