[Roshiba777]

Have come across a friend using the NGK IX Iredium plugs along with NGK racing plugs and wires in his interceptor  does changing to these have any effect compared to the stock plugs and wires.

I think the stock plugs have a problem with the insulator breaking have changed 3 plugs under warranty moreover seen a lot of carbon deposit in the plugs should i move to NGK racing kit for my interceptor

[Jako]

I seen a stock plug snap when removing with very little force so I changed to NGK CR8EIX at around $15 Aust each, or there's  NGK CR8E standard  for around $5 .  Standard NGK would be good enough .

[Roshiba777]

Quality of stock Bosch plugs is very poor planning to replace with NGK iredium plugs while at it should i also replace the spark plug wires and plug caps with NGK racing series wires and plugs

Plugs and wires are of Red colour for little bit for looks

[Tinker55]

I wouldn't bother with racing plugs; they have been designed for a specific purpose and I don't think your RE falls into that category (unless you spent all of your time on a circuit...); also their life span is significantly shorter than standard plugs.
Get a good pair of NGK 'road' plugs and you're fine.
Like you, I'm also planning to swap the cables, but only because of the looks...

[cyril31]

I wouldn't bother with racing plugs; they have been designed for a specific purpose and I don't think your RE falls into that category (unless you spent all of your time on a circuit...); also their life span is significantly shorter than standard plugs.
Get a good pair of NGK 'road' plugs and you're fine.
Like you, I'm also planning to swap the cables, but only because of the looks...

Bold > not at all. Iridiums are not "racing plugs built for a specific purpose", they are just better tech plugs. They do not make a stronger or better spark, that is the ignition coil and its charging system job. They can take a more serious beating for a longer period of time, and have less chances of damaging the engine internals if they break since the electrode is smaller.

Quality HT cables are expensive and hard to find, so i'd advice to avoid changing them except for known brands (NGK is totally fine). If you only want to change the color, some shrinking tube should do the trick for cheaper.

[Tinker55]

Bold > not at all. Iridiums are not "racing plugs built for a specific purpose", they are just better tech plugs. They do not make a stronger or better spark, that is the ignition coil and its charging system job. They can take a more serious beating for a longer period of time, and have less chances of damaging the engine internals if they break since the electrode is smaller.

Quality HT cables are expensive and hard to find, so i'd advice to avoid changing them except for known brands (NGK is totally fine). If you only want to change the color, some shrinking tube should do the trick for cheaper.

From NGK's own website:

Racing plugs for both two- and four-wheel vehicles have been developed and designed for use in engines that have been fine-tuned to achieve maximum power under specific racing conditions. Racing plugs differ from standard plugs, both in appearance and performance, and often sacrifice plug life, and efficiency at low-speeds for optimum performance and durability under torturous racing conditions.

[Gremlinsteve]

Iridium plugs come in all sorts of vehicles from factories these days

[Roshiba777]

This is the NGK kit available here in india that is made specifically for the interceptor/ GT 650

[cyril31]

From NGK's own website:

Racing plugs for both two- and four-wheel vehicles have been developed and designed for use in engines that have been fine-tuned to achieve maximum power under specific racing conditions. Racing plugs differ from standard plugs, both in appearance and performance, and often sacrifice plug life, and efficiency at low-speeds for optimum performance and durability under torturous racing conditions.

And the reason you do not provide a link to this text is because it is not associated to the irridum plugs we are talking about, but to plugs used on high boost, nitrous injected 1000HP+ engines.

[Tinker55]

And the reason you do not provide a link to this text is because it is not associated to the irridum plugs we are talking about, but to plugs used on high boost, nitrous injected 1000HP+ engines.

Here you go honey:
http://www.ngk-sparkplugs.jp/english/raceinfo/sparkplug/01/index.html

[Breaker Express]

I have to agree with Gremlinsteve.
This is also from the NGK website right above racing plugs:
Iridium IX series plugs for standard engines have an ultra-fine Iridium center electrode that ensures excellent ignitability and improved response to acceleration and power. Iridium MAX series plugs, meanwhile, have a platinum tip on the external electrode discharger, providing the same or longer life than platinum plugs. IRI series plugs are also available for modified engines.

[cyril31]

Here you go honey:
http://www.ngk-sparkplugs.jp/english/raceinfo/sparkplug/01/index.html

The only place that 14 year old PR talks about reduced service life is with electrode-less spark plugs, which no one uses on anything that does not makes very, very fast passes on a drag strip.

And as already stated, no one here is talking about racing plugs. You decided iridium plugs were all racing plugs. They are not.

We are talking about NGK IX plugs, which are used as standard on many bikes. My previous bike was an er6, it came brand new with these. It is pretty far from being a racing bike.

If you put IX plugs in the kind of engine that actually require racing plugs, they'd melt their electrodes after a few seconds of use.

As far as durability goes, I have used both standard and IX plugs on my track car. Ix are expensive so I did not want to, but i kept having misfires at the end of trackdays, if not during the trackday, and a friend of mine with a more developed engine told me to  so i gave it a try. The IX plugs may be 3 to 4 times more expensive ... but I have never changed them since they are in, and misfires never came back.

[Richard230]

My dad used surface-gap "Fire Injectors" in his 1957 Ford 6-cylinder sedan, along with various other fuel-saving devices that he saw advertised in the back of Popular Science. None of those devices seemed to help much.   

I think the big advantage of iridium spark plugs in motorcycles is the extra profit that they make for their manufacturers, distributors and retail sellers. 

Now if you owned one of those cars where you had to drop the engine to remove the spark plugs, iridium plugs might be just the ticket. 

[twocoolgliders]

Fancy plugs made out of meteorite metal pretty much are only for longer service intervals...like in cars.

They wont make a RE go any better, or worse...

"standard" plugs are dirt cheap.....I like to change them periodically and look at them...and check engine health...

"your mileage may vary"


Cookie

My dad used surface-gap "Fire Injectors" in his 1957 Ford 6-cylinder sedan, along with various other fuel-saving devices that he saw advertised in the back of Popular Science. None of those devices seemed to help much.   

I think the big advantage of iridium spark plugs in motorcycles is the extra profit that they make for their manufacturers, distributors and retail sellers. 

Now if you owned one of those cars where you had to drop the engine to remove the spark plugs, iridium plugs might be just the ticket. 

[cyril31]

My dad used surface-gap "Fire Injectors" in his 1957 Ford 6-cylinder sedan, along with various other fuel-saving devices that he saw advertised in the back of Popular Science. None of those devices seemed to help much.   

I think the big advantage of iridium spark plugs in motorcycles is the extra profit that they make for their manufacturers, distributors and retail sellers. 

Now if you owned one of those cars where you had to drop the engine to remove the spark plugs, iridium plugs might be just the ticket. 

I have something like that on my old daily car (clk 320 w209, v6, 2 spark plugs per cylinder). No need to drop the engine but it is so much of a pain to change them i paid someone else to do it. And he tried to shaft me by pretending he changed the hardest ones without doing them, which i saw considering there was no trace of hand / tool contact around it. He ended up admitting to it and changing them.

Now, mercedes says 100k mileage with irridium plugs, 50 to 75k with standard coppers. 350€ worth of IX plugs so i will never ever change them again vs 100ish with coppers and the distrinctive possibility of having to do it again someday ... i am a cheapskate, but i still chose to spend a bit more on the plugs and be done with it.

No performance gain to be expected from that, just peace of mind.

I do not know if i will do it to the interceptor though. access is easy and the engine is not exactly a rocket. I doubt the extended life would balance the increase in price. But it will not hurt the engine, that is for sure.

[Roshiba777]

Ordered the NGK kit for my interceptor earlier I was confused weather to purchase it or not but after riding my mates Interceptor I was convinced to go with it as I have felt that this kit has improved the initial pickup and idle seems to have improved compared to the stock plugs

[jimku]

Can someone please post a link to where one can actually buy a set of NGK plugs and wires for the Interceptor??  PLEASE?

[Roshiba777]

From where I have purchased they have a e-commerce wite coming soon but they have a Facebook and instapage NGAGE Powerparts

[Roshiba777]

Finally today I got my NGK iredium plug kit along with NGK plug caps and NGK HT leads here is a small video that I has made will make a video of its installation soon have a look if you like please subscribe to my channel

https://youtu.be/qcCKBI7B5aQ

[alex12342]

Just get the NGK plugs, you don't need new wires. Always buy plugs from a reputable source as there are some fake plugs floating around the internet. I got mine from rockauto.  I've been told amazon can be hit or miss with getting genuine plugs. NGK 4218 is the plug you are looking for. I have been running them in mine for a few hundred miles. Maybe its just a placebo effect but the bike seems to run a teeeeeny bit smoother. I can tell if there is any difference in power. When you install the plugs, make sure to blow out any dirt from the plug holes BEFORE removing the old plugs. Then before installing the NGK plugs unscrew the tiny caps on the plugs so you can attach the stock wires to them.

[Dr Mayhem]

This is the NGK kit available here in india that is made specifically for the interceptor/ GT 650

I'd buy these on looks alone, but seriously, I've been looking at higher end plugs anyway. Boots & wires are just plain sexy to my eyes!

[Roshiba777]

I'd buy these on looks alone, but seriously, I've been looking at higher end plugs anyway. Boots & wires are just plain sexy to my eyes!

True we can just change the plugs alone but these red colour HT leads and Plug caps are making the bike more attractive   

[Starpeve]

I'd buy these on looks alone, but seriously, I've been looking at higher end plugs anyway. Boots & wires are just plain sexy to my eyes!

Same here. They are nice aren’t they?😁
Steve

[goody59]

Had Iridium IX plugs in my last Yamaha xv1600a for about 80,000 kilometres, yes, same plugs for 80,000 ks. Great plugs, never an issue.

[twocoolgliders]

Long lasting is the major feature of those fancy plugs.

I work at an auto store...I can get conventional plugs for about $1.

I like to change my plugs and take a look at them.....I can easily afford $1 every now and then.


Cookie

Had Iridium IX plugs in my last Yamaha xv1600a for about 80,000 kilometres, yes, same plugs for 80,000 ks. Great plugs, never an issue.

[Dr Mayhem]

Same here. They are nice aren’t they?😁
Steve

I have caps/boots whatever you call them form the 50s on my 59 Triumph only they're blk, so definitely the correct retro look for the RE 650s

[Starpeve]

I have caps/boots whatever you call them form the 50s on my 59 Triumph only they're blk, so definitely the correct retro look for the RE 650s

Correct, how? As a 'retro'cafe racer styled bike, you can bet your knackers that the cafe crowd back then would've leapt at those cables and boots. They were ALL about modding and hotrodding their bikes.
Steve

[Dr Mayhem]

Correct, how? As a 'retro'cafe racer styled bike, you can bet your knackers that the cafe crowd back then would've leapt at those cables and boots. They were ALL about modding and hotrodding their bikes.
Steve

No, those hard bakelite syled caps were the norm back when

[Breaker Express]

No, those hard bakelite syled caps were the norm back when

And you can bet you could have any color wire you wanted as long as it was black to match the brown or black caps

[Dutch Rider]

NGK India:

[Dutch Rider]

The NGK heatrange "7" is comparable with Bosch heatrange "5".
As the 650 uses Bosch UR5CC, the NGK should be heatrange 7.

( NGK "8" is similar to Bosch "4", which, in my opinion, is to cold for a non sporty engine like the RE 650...)

[Mort]

Anyone got a part number on those wires?

[Dutch Rider]

Anyone got a part number on those wires?

Just search for "NGK racing wire" you'll find it everywhere.