Suzuki DF9,9 Service Manual page 84

MAGNETIC SWITCH
Push in plunger and release. The plunger should return quickly
to its original position.
Replace if necessary.
Pull-in coil Open circuit Test
 09930-99320: Digital tester
 Tester range:  (Continuity)
Check for continuity across magnetic switch "S" terminal and "M"
terminal.
If no continuity exists, the coil is open and should be replaced.
Hold-in coil Open circuit Test
 09930-99320: Digital tester
 Tester range:  (Continuity)
Check for continuity across magnetic switch "S" terminal and coil
case.
If no continuity exists, the coil is open and should be replaced.
Contact points Test
 09930-99320: Digital tester
 Tester range:  (Continuity)
Put the plunger on the under side and then push the magnetic
switch down. At this time, check for continuity between terminal
"B" and terminal "M".
Continuity indicates proper condition. If no continuity exists,
replace the magnetic switch and/or plunger.
IGNITION AND ELECTRICAL 3-37
1. Plunger
1
1. Terminal "S"
2. Terminal "M"
3. Terminal "B"
1
3
2