Need some opinions please

[5280Busa]

Here is pic of my #4 plug after about 600 miles since the rebuild...seems to run good, little rich but no noticable performance problems. These are gapped at .020..the plug tips look tannish but its hard to tell.

I am running the motorhead turbo with 45# fuel map
JE low Comp pistons with .080 base spacer

How do these look to you?

 

[STUNNAH]

I think they look good...I would worry if they were ashed looking to lean...

 

[Mattzgixxer]

I would have to agree with STUNNAH. Only cause I would be affraid not to....

 

[Uncle Bob]

the porcilin is the biggest hint on how an engine is running, and you can barely see it in that pic.  

Going off the what little I can see, I'd say....its running rich, which isn't a bad thing, but I can't see much, so don't put much behind that opinion  

<!--EDIT|Uncle Bob
Reason for Edit: None given...|1093754482 -->

 

[MET]

Much better to run a little rich on a turbo bike anyway. Get yourself an A/F meter or gauge so once you set the bike you can monitor the mix.