User's Manual

46
f. Coil Lead on 10 Amp Alternator Systems. Remove
the coil lead from the ignition unit terminal. Attach
the leads from a standard ohmmeter to the lead
eyelet and to ground to check series resistance
of the ignition generator coil.
1. If resistance is below 400 ohms, replace the
stator assembly which includes the coil.
NOTE: The ignition generator coil cannot be
replaced separately.
2. If coil resistance is above 400 ohms, replace
the ignition unit.
CAUTION: Before replacing Ignition Unit, meter
ignition cutoff circuit in the switch for a “short”,
allowing battery current to burn out the ignition
unit.
Remove the switch and connect the leads
from a continuity meter to the battery lead
terminal and the ignition ground terminal.
Actuate the switch in various positions to see
if continuity exists. Any continuity indicates
a bad switch. When replacing a switch be
sure that the lead and terminal do not short
through the equipment frame.
FOR 10 AMP IGNITION SYSTEM
CONNECTIONS ARE THE SAME FOR 8 H.P. AND
LARGER AND VALVE-IN-HEAD ENGINES
g. Coil Lead on 20 Amp Alternator Systems. Remove
the coil lead from the ignition unit terminal. Attach
leads from a standard ohmmeter to the lead eyelet
terminal and to ground to check series resistance
of the ignition generator coil.
If coil resistance is between 115 ohms and 171
ohms, replace the ignition unit.
CAUTION: Before replacing Ignition Unit check the
ignition cutoff circuit in the switch, for a “short” allowing
battery current to burn out the ignition unit. Remove
the switch and connect leads from acontinuity meter
to the battery lead terminal and the ignition ground
terminal. Actuate the switch in various positions to
see if continuity exists as shown on the meter. Any
continuity indicates a bad switch. When replacing
the switch be sure that the lead and terminal do not
short through the equipment frame.
FOR 20 AMP IGNITION SYSTEMS
OHMMETER
TO GROUND
COIL LEAD
LEAD
EYELET
RETAINING
SCREWS
STATOR AND COIL ASSEMBLY
RETAINING SCREWS
STATOR AND COIL ASSEMBLY