ryankesterholt
New Member
i have the screaming eagle triple platinum in mine. i got them for free is the only reason i use them. Do these type of plugs affect the ion sensor since they are made for harley i wouldtn think so but i dunno?
i have the screaming eagle triple platinum in mine. i got them for free is the only reason i use them. Do these type of plugs affect the ion sensor since they are made for harley i wouldtn think so but i dunno?
And the Ion Sensor needs to work properly so why take the risk of running anything but the right plug.. Take 1 look at some of these spark advance numbers from a stock factory map from my 2009. (If it displays correctly) the left column is RPM top to bottom and "engine load" is from left to right with far right being WOT.
Look at all the high 30's and 40's of degrees of advance.Your engine could never live a long life without some sort of spark retard kicking in when you quickly twisted the grip from a light load map in the 3000 RPM range.
Harley Davidson Community
I would think as long as the plugs your installing have the same resistance as the standard 6R12 plug you should be OK. Now a standard 6R12 HD plug that fits my 2009 FXDL has 36.4K ohms. That is not a misprint and that is a bunch. If the plug your installing has that high a resistance, I would guess you would be OK and the ion sensor will perform properly..
Ok, I tried checking the resistance on several plugs and don't get consistent readings. Maybe I'm not placing the probes in the correct place?I would think as long as the plugs your installing have the same resistance as the standard 6R12 plug you should be OK. Now a standard 6R12 HD plug that fits my 2009 FXDL has 36.4K ohms. That is not a misprint and that is a bunch. If the plug your installing has that high a resistance, I would guess you would be OK and the ion sensor will perform properly..
That's what I was doing. Possibly I was also touching the ground strap.Be sure to start with your meter in the 200K range and work down. (you may not have to).
Place 1 probe of your meter on the same contact point as the coil wire goes and the other meter probe to the center electrode (part that goes inside engine)
Se what you read.
on several plugs and don't get consistent readings.