Topic: Denso Spark Plugs

[BenelliSEI]

Can someone remind me why I bought these? To try in my cb750?

[lash]

Your inner hoarder..

[grcamna2]

Those ND's cross reference to match the NGK D8EA.

[BenelliSEI]

Your inner hoarder..

So true! I thought I must have read about them here?

[Kevin D]

Maybe you did read that I recently changed out my Densos X24esu after 32000 miles, 12 years.
There is a coffee can full of NGKs that I will put them with.
Why did I change them out? I came across a set of new Densos and was stunned when I learned how old the in service plugs were.

[grcamna2]

I like the original great quality Nippon Denso vintage plugs;they're made in Japan from very good materials,and they do Last.
I can only find the Japanese great,original 'Nippon Denso's(made from nickel,rather than steel)as NOS,not many of them left.
The Denso brand(made from steel,not from Japan anymore)are made in Taiwan,and they're ok quality;beware of imitations(China,etc.)of the authentic Taiwan 'Denso's.

These are both Japan Nippon Denso plugs:the one on the left is an early one,w/ the large hex area;the one on the right is a later Nippon Denso,both made of nickel,they'll last a long time,unless they foul.

[newday777]

Maybe you did read that I recently changed out my Densos X24esu after 32000 miles, 12 years.
There is a coffee can full of NGKs that I will put them with.
Why did I change them out? I came across a set of new Densos and was stunned when I learned how old the in service plugs were.

Dang!!! 32,000 miles! That is amazing

[BenelliSEI]

Maybe you did read that I recently changed out my Densos X24esu after 32000 miles, 12 years.
There is a coffee can full of NGKs that I will put them with.
Why did I change them out? I came across a set of new Densos and was stunned when I learned how old the in service plugs were.

Kevin….. that’s what I was trying to recall. I probably ordered them after reading that!

[Don R]

 The thinking is, they maybe a half heat range hotter than the NGK's. I use them in my CB's, GL and GS.

[HondaMan]

That's my favorite touring plug. I use the X22ES-U in city riding: it is similar to the long-gone D8ES-L plug created in 1971 for the 750.

[seanbarney41]

Also, NGK has stopped making ALL non-resistor plugs.  Is Denso still making the non-resistor types?

[newday777]

Is Denso still making the non-resistor types?

According to the Denso web page yes they are.

[BenelliSEI]

Thanks for all this. I’m sure these conversations are what prompted me to try them!