Hi. I have a 1971 Johnson 50hp outboard on a 24' pontoon. I'm doing some winter maintainance, and when I pulled the plugs they look like automotive type plugs.<br /><br />The manual calls for a plug that looks completely different on the electrode end.<br /><br />I use the boat for trolling 99% of the time. It is usually at idle for the slowest troll possible.<br /><br />Should I get the plugs the manual calls for, or is there a better plug for constant operation at idle?<br /><br />Your wisdom is appreciated!<br />-Spiker
