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 TM 5-2805-261-13
ELECTRICAL TROUBLESHOOTING/TESTING - continued
ANSWER
STEP
QUESTION/INSTRUCTION
YES
NO
REMARKS
3
If no spark, check system with stevens S-80 or Merc-o-Tronic
See fig. 4-3.
neon light test. Disconnect blue primary lead of No. 1 ignition
coil. Connect blue lead of neon tester to blue primary lead
coming from armature plate. Connect black lead to ground.
Figure 4-3. Ignition coil no. 1 circuit test
Set neon test light switch to position No. 1. Crank engine.
Is output good (light steady and bright)?
4
5
Is light dim?
5
4
4
Replace No. 1 ignition coil.
See para 4-16.
5
Replace No. 1 condenser.
See para 4-16.
No light?
6
6
Check resistance reading of driver coil. Check both sets of
See para 4-16.
breaker points for correct gap and condition of points.
4-6
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