89
ELECTRICAL
ELECTRIC STARTER SYSTEM
4
Performance Tests
IMPORTANT:
Each test must be performed
within 3 to 5 seconds to avoid coil damage from
overheating.
Pull-In/Hold-In Test
Connect battery to magnetic switch as shown.
Check that plunger and pinion (over-running
clutch) move outward.
If plunger and pinion don’t move, replace mag-
netic switch.
IMPORTANT:
Before testing, disconnect brush
lead from terminal “M.”
While connected as above with plunger out, dis-
connect negative lead from terminal “M.”
Check that plunger and pinion remain out. If
plunger and pinion return inward, replace mag-
netic switch.
Plunger and Pinion Return Test
Disconnect negative lead from switch/motor body.
Check that plunger and pinion return inward. If
plunger and don’t return inward, replace magnetic
switch.
WARNING
When performing the following test, be
sure to connect the battery and the start-
ing motor with a lead wire of the same size
as the original equipment used there.
1.
“S” terminal
2.
“M” terminal
3.
“B” terminal
4.
Brush lead
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