Hi folks,<br />Great site with lot's of info here!!<br /><br />I'm tuning a couple Johnson 55hp commercial outboard's (J55WRLSSC) and noticed the recommended plugs (QL16V) are the surface-gap type. After a bit of research it sounds like these plugs work best under constant WOT conditions. These engines will spend much of thier service under idle conditions. Is there a traditional gap-style plug that would be an appropriate replacement? If so, can I assume a good place to start the gap is .030 ? I'm also concerned about the ground electrode bumping the piston, but I guess I could do some simple measurements at TDC.<br /><br />Thank you!<br />-Jack
<br /><br />No VRO, these motors are bare bones...<br />How did you convert the QL16V to L77JCV?<br /><br />I checked the chart at boatsetup earlier too, but couldn't figure out a way to convert...<br /><br />Thanks again,<br />-Jack