have a 1968 evinrude 55 triumph outboard, cranks fine, checked spark and while cranking it gets no spark,but as soon as you let up off the key, you get a single spark! HELP!! wiring harness was shot, i replaced it. same problem....gotta get 'er running or my girlfriends gonna kill me..shes a fishaholic!!
68 evinrude o.b. cranks,no spark.let up on key and get single spark? help?symantic
Does the motor crank over fast or slow? If slow, remove the spark plugs and retest. If you have spark back, you have a voltage issue. Could be the starter using too many amps, not leaving enough for the ign till you turn off power to the starter.
Back in the late 60's to the early 70's Johnson/Evinrude used several different ign systems. Does yours have the spark plug leads coming out from under the flywheel with a box on the right side that has Motorola on it? If so, make sure the voltage to the box stays above 10.5 volts when cranking, if not we need to get it there.
Or is the a box on the side with 10 wires going to it and 3 coils, 1 for each plug? Then we have a different issue.
Let us know.
68 evinrude o.b. cranks,no spark.let up on key and get single spark? help?viruses
You either have a bad ignition switch, starter solenoid, or a wiring problem.
how many HP? and cylinders. I have a 1975, 85 hp evinrude, and it
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