Spark Plugs 1980 GS1000gt

[ironbiker]

Do you have to resync carbs when using E-Sparkplugs,seems to hesitate on acceleration.

[Nessism]

What is an "E-Sparkplugs"?

[rphillips]

Sorry, have no clue what an "E" sparkplug is, thinking a new gimmick to sell sparkplugs.. Also never heard of any sparkplug affect nor be advertised to affect anything about carbs. Also over the yrs, there have been many new types of spark plugs that have made many claims, one has 2 electrodes, one has 5 electrodes, one has platinum, double platinum, iridium. copper/nickel. For me the sparkplugs the bike's manual advises is about as good as you'll find for your bike. If your bike didn't have this hesitation before these plugs were installed... This hesitation may be an inmay be trying to tell you something.

[zed1015]

Do you have to resync carbs when using E-Sparkplugs,seems to hesitate on acceleration.

No! Regardless of sparkplug type their fitment cannot affect the carb sync.
More likely one of your plugs are faulty or you have another issue.

[ironbiker]

https://www.e3sparkplugs.com/

[rphillips]

Yep, looks like what we've, for yrs., called marine spark plugs (also called surface gap sparkplugs). Instead of 1, 2, or 5 electrodes sticking up off the base circle for the center electrode to jump spark to, the center electrode jumps the spark to the complete 360 degree base circle of the plug. I've always wondered why this wouldn't work well for all spark plugs but it must not, they've been around for a very long time, but rarely seen nor used.. i

[zed1015]

They are designed to expose the hotter kernal of the spark for a better burn.
Very much like sidegapping the ground electrode on the more commonly used ( and cheaper to produce) single electrode design of plug.
Still not going to affect carb sync though so if the problem only appeared with the new plugs i'd be looking to identify the faulty one or maybe something else that was disturbed when fitting them.
Maybe you have fitted resistor plugs when you already have resistor caps or leads which will produce a weaker spark especially under load at lower rpm's.
You must only ever have one source of resistance if any at all.

[chuck hahn]

Putting the ones called for in the parts fiche will tell a story. Bike may not like those fandy schmancy ones Fiche says B8ES.
NGK has replaced these with BR8ES i believe

[Nessism]

Don't use BR8ES. The "R" means resistor, which is not needed.

If you can't find B8ES plugs, look for ND W24ES or W24ESU plugs. They are just as good as the NGK's.

[chuck hahn]

ED as youll recall we went through this some years ago and i emailed NGK. Thier response was that the R is thier replacement for the plug. I looked for the thread but didnt find it.

[chuck hahn]

HERE ya go straight from NGK

Lela Martin
Racing Sponsorship / Technical Support – Aftermarket Division
NGK Spark Plugs (U.S.A.), Inc.
(877) 473-6767 option 2

EDIT.... I asked specifically about our beloved B8ES plugs and heres the response......

B8ES has been superseded to BR8ES resistor plug or you can use the R5671A-8 which is non-resistor racing plug.

Lela Martin
Racing Sponsorship / Technical Support – Aftermarket Division
NGK Spark Plugs (U.S.A.), Inc.
(877) 473-6767 option 2

[Nessism]

I'm not familiar with the R5671A-8. Do they have a removable top so the common GS or NGK plug caps can be used? Regardless, I would not use the R plugs, because the stock GS, or NGK, plug caps, already have a 5k ohm resistor built in. And while NGK plugs are all well and good, ND plugs are just as good, and readily available. That's what I'm using now.

[rphillips]

Sure hate to see the non-resistors less available. All these newer electronic controlled bikes may get messed up without resistors, but I think our old GS's will always enjoy the non-resistors as they ask for.

[pdqford]

An old timer told me years ago that the spark will take the path of least resistance. So which ever ground strap offers the least resistance, that's the way the spark will jump.

[chuck hahn]

I take the resistors out of the caps and replace them with a copper blank so on my bikes its a non issue. And if the tops dont unscrew change the caps out.