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1986 150 Blackmax no spark

merk1

New member
"Have NO spark to ANY cylinder

"Have NO spark to ANY cylinder. Kill/Mercury switch check good. Disconnected Black/Yellow to Switchboxes, no help. Checked Rectifier, Stator and Trigger per Clymer manual. ALL READINGS (Resistance) check Good/EXACT per manual.
What other readings (maybe voltage) can I make to determine failure??
What are the MUST HAVES to produce spark??
Are there VOLTAGES to the Switchboxes/Stator/Trigger that are required??"
 
most likely the low speed wind

most likely the low speed winding burt out in stator need dva meter to reed voltages unit has 2 packs both rarely fail at same time
 
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