Boilermaker
Petty Officer 1st Class
- Joined
- Sep 28, 2003
- Messages
- 388
OK, I'm not sure if it was an error in the Champion Sparkplug Application Chart, or they changed the recommended plugs for my engine again.<br /> I have a 1978 Johnson 115HP x-flow and have been running L77JC4 pluggs gapped at 0.40". <br />The Champion Application Chart at my local marinea, and the one listed online> http://www.boatsetup.com/SparkPlugChart.html <br />lists a QL77JC4 @ 0.030 gap. 
<br /><br /> So what is the best for me??? I use the boat for fishing & with my kids water toys & sking.<br /><br /> MOSTLY fishing where it idles for long periods followed by high speed runs for some miles, followed by a 2 mile no wake zone run back to the ramp.<br />Thanks for any help!<br />
<br /><br /> So what is the best for me??? I use the boat for fishing & with my kids water toys & sking.<br /><br /> MOSTLY fishing where it idles for long periods followed by high speed runs for some miles, followed by a 2 mile no wake zone run back to the ramp.<br />Thanks for any help!<br /> 