1988-1995 Mercury Force 5HP Outboards Service Manual, 90-823263 793, Page 90Get this manual
5 Crank over power head
OBSERVE
POSSIBLE CAUSE
WHAT TO DO Check groundsReplaceDisconnect leads from stop switch and repeat testIf defective, replaceAdjust pOints
Weak, yellowish or red spark, or no spark at all
Poor groundsDamaged or worn hightension leadMalfunctioning stop switchPoints not adjusted properly, too wide or too narrowPoints pitted or burnedPoorly grounded or defective top crankshaft seal