LHS header's gone blue

[Morety]

As per the tile, I've noticed a bluing in the last 1K miles on my left hand side header and wondered of this is normal or the bike might be running hot on that cylinder? The idle at cold is fine but can occasionally get a little lumpy when warm. I was wondering if this might be indicative of a coil pack issue?

 

[wessie]

As per the tile, I've noticed a bluing in the last 1K miles on my left hand side header and wondered of this is normal or the bike might be running hot on that cylinder? The idle at cold is fine but can occasionally get a little lumpy when warm. I was wondering if this might be indicative of a coil pack issue?

it's normal patination

https://www.ukgser.com/community/search/33916/?q=blue+header&o=relevance has loads of threads on the subject

 

[Morety]

Thanks Wessie, I thought it might be but didn't get it to the anything like the same extent on the GSA

 

[wessie]

Thanks Wessie, I thought it might be but didn't get it to the anything like the same extent on the GSA

I imagine it is related to the recent high ambient temperature