I recently had Jamie at FM revise my map to increase my fuel tables by a little because I was still getting some ocassional mild pinging. I pulled these after about an hour run on the highway. What do you think? This is the same plug (front), just different angle.

 

Did it stop pinging? Some may say it looks a little too white, but I think it looks fine. Mine look identical to that. The most recent thing I've read on spark plugs are they won't have that brownish tent anymore, because the engines run much more efficient throughout the powerband, and burn much cleaner than before. So if it isn't pinging anymore, it's definitely okay.

 

Did you do a throttle chop?

If not, they don't look like anything...................

 

They look good. Put them back in and ride.

 

at what rpm range did you chop them? idle, mid or wot

 

Looks like she's burning clean. Good to go.

 

your plugs look clean.

 

Looks Good To-Me

 

I don't believe you can get the tan/redish brown plug for the correct AFR as we used to get early on. Todays unleaded gas does not read the same. I got mine to darken up without sooting and no popping on decel and the bike runs cooler.

The plugs look clean to me and if the bike is running good I would go with what you got. My plugs where chalky white, very lean. That plug looks about right for the gas we have today but I would like to hear some input from someone that knows for sure.