Ngk plug shortahe

[grcamna2]

I read that also about fake NGK plugs.I've purchased 'fake' Denso :indecisiveness: By that I mean,they weren't Nippon Denso.. The cheap copies for 'Denso' plugs aren't Made in Japan and I'm not sure(China?)just where they're made,but they don't last.They also have a cheap plating which tends to flake-off when run hard and burn onto the center porcelain and cause the plugs to foul.I ordered some and used a dull safety razor and I was able to scratch the plating stuff right off the inside(inside the firing zone)steel of the plug:I wouldn't doubt that would foul the plug later.I know the Automotive places will sell you genuine NGK plugs if you ask them.I would bring a spare new NGK in the box with you when you go to pick them up,have a look at the color of the plating,the box it comes in,the shape of the porcelain,electrodes,etc. and see if they match a genuine one.

 

[zed1015]

I had read or heard someplace that there were fake NGK plugs available. Does anybody know if this might be true?

There are some fake NGK's about but they are easy to spot.
NGK give a full rundown of the differences on their web site but the main things to look for are a lack of four digit number on the socket hex and a loose sealing washer that nearly falls off the threads.
I buy boxes of 10 via EBAY ( I have filled up a large NGK plug rack with B8es and B9es with a couple of hundred to cover any future needs )
They work out around ?1.50 per plug and if any happened to be fake ( which non have ever been so far ) It would be easy to return them for a refund.

 

[Guest]

I don't understand how you use these interchangably. My bike has BR8ES installed, and it has a tiny tip where the plug cap goes, the B8ES is like, twice as wide? It feels like too much resistance to the plug cap on.

It seems B8ES is avail in Norway tho, somewhat pricy if I recall.'

Edit: You just unscrew the top metal bit.

 

[tatu]

There are some fake NGK's about but they are easy to spot.
NGK give a full rundown of the differences on their web site but the main things to look for are a lack of four digit number on the socket hex and a loose sealing washer that nearly falls off the threads.
I buy boxes of 10 via EBAY ( I have filled up a large NGK plug rack with B8es and B9es with a couple of hundred to cover any future needs )
They work out around ?1.50 per plug and if any happened to be fake ( which non have ever been so far ) It would be easy to return them for a refund.

Thanks for the response useful information there.
I had a look on the NGK site but couldn't find anything, however this helps...

Warning - non genuine spark plugs.... - South Coast Classic Racing (scc-racing.com)

 

[Grimly]

Thanks for the response useful information there.
I had a look on the NGK site but couldn't find anything, however this helps...

Warning - non genuine spark plugs.... - South Coast Classic Racing (scc-racing.com)

I buy mine from greensparkplug uk, as I'm certain he has only genuine stuff in.
https://www.gsparkplug.com/

 

[tatu]

I buy mine from greensparkplug uk, as I'm certain he has only genuine stuff in.
https://www.gsparkplug.com/

He has everything! Thanks for that. bookmarked for when I get back

 

[Burque73]

I noticed this written in the owner's manual for my 850. Wonder if these two are on the chopping block along with the B8ES.

"B7ES or Denso W22ES-U if the standard plug is apt to get wet, replace with this plug."

"B9ES or Denso W27ES-U if the standard plug is apt to overheat, replace with this plug."

It gets pretty darn hot here in the Southwest, but I've never felt the need to use the B9ES. What heat range or engine running symptom would warrant that change?

On the other hand, in wet conditions, pffft like that'll ever happen here, could the engine stall and warrant the B7ES?

 

[grcamna2]

I noticed this written in the owner's manual for my 850. Wonder if these two are on the chopping block along with the B8ES.

"B7ES or Denso W22ES-U if the standard plug is apt to get wet, replace with this plug."

"B9ES or Denso W27ES-U if the standard plug is apt to overheat, replace with this plug."

It gets pretty darn hot here in the Southwest, but I've never felt the need to use the B9ES. What heat range or engine running symptom would warrant that change?

On the other hand, in wet conditions, pffft like that'll ever happen here, could the engine stall and warrant the B7ES?

Hi Roger,I think it depends on spark plug color.The B7ES is a hotter plug which would be considered if you rode the bike for short distances in cold(below 38 degrees)weather/or if your stock B8ES plugs were running too cold and fouling.The B9ES cold plugs are possibly for running the bike at a steady 110+mph in hot weather:they dissipate heat faster than your stock B8ES which is already a fairly cool plug.

 

[wymple]

I can't remember the last time I bought NGKs. There are lots of alternatives that I haven't had any problems with.

 

[Nessism]

ND W24ES-U are excellent

https://www.ebay.com/itm/284203162274?epid=112762708&hash=item422bd41aa2:g:1z8AAOSw--tgnPva

 

[TeamDar]

What about just ND W24ES? That is shown as the alternative plug in the 1977 GS750 owners manual.
https://www.ebay.com/itm/NOS-New-CB...-/360780517093?_trksid=p2349624.m46890.l49286

 

[Nessism]

What about just ND W24ES? That is shown as the alternative plug in the 1977 GS750 owners manual.
https://www.ebay.com/itm/NOS-New-CB...-/360780517093?_trksid=p2349624.m46890.l49286

Should be okay. I think the U version came out after the regular version and Suzuki moved their recommendation to those but the regulars should be fine.

 

[Allie]

Fun fact, the screw-on lug for the NGK 4554 'racing' plug doesn't screw on... OR off. Maybe I missed that somewhere. So it won't readily work with my NGK plug boots :/