Specifications

43
Wiring
CONDITION. All wiring must be fully insulated
between connection points, securely fastened and free
of foreign material (such as rust and corrosion) at the
connection points. This is especially important in the
use of batteries where much of the potential may be
lost due to loose connections or corrosion. Remember
to check the insulation on the wire. All it takes is a pin
hole for a wire to "ground out" on the engine or frame.
This is of special concern when moisture or water is
present. This may cause the engine to run erratically
or be impossible to start.
WIRE GAUGE: Proper thickness of wire is necessary
in all electrical circuits. Wire diameter is measured in
increments of gauge numbers. The larger the number,
the smaller the diameter of the wire. The smaller the
number, the larger the diameter of the wire (diag. 88).
1. Starter circuit wiring must be rated at #6 or lower
gauge number.
2. Charging circuit wiring must be rated at #16 or
lower gauge number. (20 amp system requires
#14 or lower gauge number).
3. Magneto circuit wiring (ground circuit) must be
rated at #18 or lower gauge number.
Color Codes
Code Product
Yellow - Alternator A.C. Leads
Red - Alternator D.C. (+) Leads
Brown - Alternator D.C. (-) Leads
Black -
Alternator Ground Leads, Battery
Ground Leads
Orange - 12 Volt Starter B (+) Leads
Dark Green - Ignition Shut-Off Leads
Ammeters
An ammeter is used to measure the rate of current flow
from the alternating system to the battery. If no current
flow is indicated by the ammeter, remove the ammeter
from the circuit and check all other components in
the system. Use the ohmmeter to check continuity
across the ammeter. If no continuity exists, replace the
ammeter.
THE LARGER THE NUMBER
THE SMALLER THE WIRE
#18
#6
88
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