Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 51Get this manual

Mercury Mariner 4, 5, and 6HP 4-Stroke Factory Service Manual, Page 51

IGNITION SYSTEM
BRESISTANCE TEST 1Use an ohmmeter to perform the following primary winding test0.02-0.38

2Use an ohmmeter to perform the following secondary winding test
NOTE: High tension cables must have spark plug cap removed before testingCap contains 5k ohm resistorIMPORTANT: To remove spark plug cap from high tension leads, turn cap counterclockwise while applying slight outward pressureDO NOT PULL HARD or lead may be damagedTo install cap, turn cap clockwise threading cap onto high tension lead

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