Is this spark plug too lean or looks normal?

[dougl]

This Dyno was taken at 7000 km on werkes exhaust + penner map. DNA airfilter installed at 10000km
@Tal @Dr.D @dougl

Looks fine. Not lean at all.

 

[imcool]

Get your rotten tomatoes ready to throw.

Since the advent of UNLEADED (NOT ethanol) fuel, first seen in the 70's, later mandated in the 80's, all the rules of "reading plug color" were made NULL & VOID. (Except for off road racing vehicles burning LEADED FUEL).

Snow white is just fine.

By the time an engine running unleaded fuel begins to "color the plug", the air fuel ration is WAY TO HELL AND GONE TOO RICH for optimal performance.

Flame away if you like.

I am not expert with this stuff so I have this question, if thats the case what you said above, then why triumph factory manual has "Spark plug inspection " showing 3 photos of lean, rich and burnt spark plugs in rocket 2020+ manual from factory.

 

[concours]

Because there is other information to be gleaned from spark plugs.

Poor compression
Oil control
among them.

That, and "non-meat filler" for shop manuals.