Reading Plugs 'pics'
 

Can you 'read' my spark plugs?

http://i272.photobucket.com/albums/j...3/P2061997.jpg

http://i272.photobucket.com/albums/j...3/P2061999.jpg

http://i272.photobucket.com/albums/j...3/P2061998.jpg

The plugs in the pictures are about 4-5kmi old, I've had them in my motor since being rebuilt in 2006. The motor has all emissions removed, running premix (1oz to 1gal).
Stock turbo w/ rtek 1.5 w/ cas pulled about 1 deg to ward off detonation from boost creep up to 15psi. UNSAFE I KNOW! I'm going to be hopefully tuning it soon via RTEK 2.1 and PLX WB so I will set the timing (cas) back to fsm specs soon.

I want your thoughts...

Here you go.
http://www.verrill.com/moto/sellingg...colorchart.htm

Looks pretty normal...

If anything, you've got uneven center electrode wear...
I dunno what the order of the plugs are?
#3 is the least eroded - gotta be one of the trailings?
#4 looks the worst eroded - gotta be one of the leadings?



-Ted

I am thinking that the ones on the right are for the front rotor? The left for the rear rotor?

How about mine?

https://www.rx7club.com/attachment.p...1&d=1204097573

https://www.rx7club.com/attachment.p...1&d=1204097573

https://www.rx7club.com/attachment.p...1&d=1204097573

I thought I had a picture of all 4, but don't know where it went.

Plugs look pretty normal for a rotary.

They look normal to me too.

If you guys are talking about reading as in a rich/lean condition, you can't tell much fromt hose pics.

You have to actually do a plug chop, where you cut down the threaded part and read the base of the insulator. That's how you tune carbs on a budget.