Re: 1976 JOHNSON SEAHORSE 15 HP SPARK PLUGS BURNING OUT WHATS WRONG
Your engine uses a points and condensor igntion system that uses energy transfer. Unlike independent points, this one has them connected to a coil under the flywheel that "feeds" the coils mounted on the engine. That motor has to use the Champion UL81C plugs to work correctly.<br /><br />The rest of the engine has to be in good shape and adjustment to run normally. Make sure the thermostat is also bringing the motor up to temperature, about 140 degrees.
<br /><br />What spark plugs are you using, and what does "burning out" mean, exactly?<br /><br />Please don't post in all capitals. It seems like SHOUTING. Thanks. 
