Re: 135hp no spark
Remove the s/plugs. Rig a spark tester whereas you can set a 7/16" gap. Crank the engine. The spark should jump that gap with a strong blue lightning like flame.<br /><br />Note: The engine must be turning over at least 300 rpm in order to generate the proper voltage to the powerpack on that 1974 135hp.<br /><br />If no spark, disconnect the main RED electrical connector at the engine, then try the test again by using a small jumper wire between the battery side of the starter solenoid to the 3/8" nut on the solenoid (not the ground 3/8" nut).<br /><br />If you now have spark, in all probability, the ignition switch has a short within it, in which case replace the ignition switch.<br /><br />If still no spark, inspect the stator under the flywheel to see if it's cracked and melting out a sticky substance at the extreme front and extreme back of the stator. At those areas, there are the two large coils that deliver approximately 300v AC to the powerpack. If the stator is indeed melting down, replace it.<br /><br />If the stator appears to be okay, I would suspect that the powerpack has failed.
