E3 spark plugs

[Dieselshawn]

Those spark plugs must’ve been from days past when there were hundreds of different brands of products were available.

 

[shadco]

Ran them in my race bikes mid 70’s Husky and Maico.

they are still around today but mostly in the UK.

.

 

[PA Dan]

I have had a couple brand new ngks not work over the last 5 years or so. But never had one or seen one create a catastrophic failure. Lookin forward to tryin some denso plugs from @cuinrearview

Have used maybe a dozen Denso's so far and haven't had an issue at all.

 

[jakethesnake]

I lied. I’ve got a Bosch in this one. No problems.