spark plugs

[gshub]

spring is in the air currently my Gs1085s is running NGK B8iex irridium plugs
thinking going back to stock NGK B8es as they are alot cheaper,just wondering your thoughts on this?.

[Sie Motorräder]

Hello:

I have used iridium plugs and have not noticed any performance enhancement. They are not worth the money.

Bosch Platimum plugs on the other hand work well in cars for longer service intervals and I have used them and am amazed by them.

[gshub]

Hello:

I have used iridium plugs and have not noticed any performance enhancement. They are not worth the money.

Bosch Platimum plugs on the other hand work well in cars for longer service intervals and I have used them and am amazed by them.

Hi dont suppose you got a plug number for them Bosch plugs?

[Sie Motorräder]

Hi dont suppose you got a plug number for them Bosch plugs?

Oh the Bosch were used in Cars not in bikes. I am sorry I was not clear about that.

[gshub]

Oh the Bosch were used in Cars not in bikes. I am sorry I was not clear about that.

no probs but can see where you coming from.

[Octain]

spring is in the air currently my Gs1085s is running NGK B8iex iridium plugs
thinking going back to stock NGK B8es as they are alot cheaper,just wondering your thoughts on this?.

Go with the B8ES.
Spark plug hype is just that, hype. I always use what the manufacturer recommended in everything I own.

[Nessism]

The main thing with iridium plugs is they are more durable than regular plugs - sort of like using synthetic oil. The cost is higher but they last longer and should be less prone to fouling. Many OE car companies are going with iridium plugs these days because they can last up to 100,000 miles. Try that with a B8ES.

[tkent02]

They won't last that long in a primitive engine with stone age ignition and without fuel injection.

[Octain]

The main thing with iridium plugs is they are more durable than regular plugs - sort of like using synthetic oil. The cost is higher but they last longer and should be less prone to fouling. Many OE car companies are going with iridium plugs these days because they can last up to 100,000 miles. Try that with a B8ES.

Its not unusual for a modern vehicle to exceed 100k with most any type plug. Along with other things, today's strict emissions laws demand a much cleaner burning engine. They burn much cleaner than a 30 year old air cooled motorbike

[gshub]

NGKb8es

well i paid £1.30 for each B8es plug or £8.40 for each B8iex.
think going to stick to the stock plug.

[Nessism]

Its not unusual for a modern vehicle to exceed 100k with most any type plug. Along with other things, today's strict emissions laws demand a much cleaner burning engine. They burn much cleaner than a 30 year old air cooled motorbike

Sounds like all the more reason to want some new technology plugs.

Found a nice SAE White Paper article about iridium spark plug development... http://www.sparkplugs.com/pdfs/iri.pdf

Bottom line is the small electrode in the iridium plug will shoot a spark with less voltage, not wear as fast, and fire in leaner mixture conditions than a regular spark plug. Superior technology...but at higher cost.

[1948man]

They won't last that long in a primitive engine with stone age ignition and without fuel injection.

My ignition appears to be Bronze Age.

[gshub]

My ignition appears to be Bronze Age.

mine has a Dyna green 3ohm coils and Dyna leads,ignition so should a nice spark but
for reason runs better on B8es.

[Octain]

Sounds like all the more reason to want some new technology plugs.

Found a nice SAE White Paper article about iridium spark plug development... http://www.sparkplugs.com/pdfs/iri.pdf

Bottom line is the small electrode in the iridium plug will shoot a spark with less voltage, not wear as fast, and fire in leaner mixture conditions than a regular spark plug. Superior technology...but at higher cost.

Ever used em in any of your bikes?

[Nessism]

Ever used em in any of your bikes?

Actually yes. Have them in my 1000S, and have some spares that came installed in another bike I bought, and later resold (with regular plugs installed)