Sparkplugs

[Mzee]

Re: Question on NGK Iridium Spark Plugs

Thanks folks for the responses. I have always used NGK and changed them at 20,000km. I am surprised that all of you seem to suggest that you can use them even longer. I think that changing them at 20,000km was initiated by the dealer during the schedule service. I took their word for it. Part of the problem is that I am not as schooled as most of you on the technical and mechanical matters.

To answer your question, my friend recommended iridium plugs, but now I remember he rides a superbike which is a different bike in character. I am happy to stay with the standard NGK plugs, especially now that I have discovered that I can keep them longer.

While we are still on this topic I have two more questions:

a) Is the changing of spark plugs a highly specialized field that can be done only be a qualified mechanic say at Yamaha dealership or other? Suppose the answer is no, it then means that I as an amateur with some instructions from a qualified mechanic can change them. The reason I am asking is that every time I take my bike into the dealership, they claim they need an hour to change plugs and of course charge accordingly. I am think of doing it myself with some help here.

b) Where are the plugs located and what process should I follow to the take them out and to install them? I will appreciate any input on this matter.

I will keep you posted.

 

[scott123007]

Re: Question on NGK Iridium Spark Plugs

An hour labor is more than fair for changing four plugs on the Tenere. If you are not mechanically inclined, sparkplugs are not an item you should be messing with. They are easy to cross thread and if you don't know how to "feel" if something is not right, and screw it up, it will cost many hundreds of dollars to fix.

 

[Mzee]

Re: Question on NGK Iridium Spark Plugs

An hour labor is more than fair for changing four plugs on the Tenere. If you are not mechanically inclined, sparkplugs are not an item you should be messing with. They are easy to cross thread and if you don't know how to "feel" if something is not right, and screw it up, it will cost many hundreds of dollars to fix.

I hear you. But surely, there must be a specific technique plugs and installed and removed. It is not just a feeling thing and this can be learnt?

This thread was also helpful: http://www.yamahasupertenere.com/index.php?topic=8671.0

 

[Dallara]

Re: Question on NGK Iridium Spark Plugs

I hear you. But surely, there must be a specific technique plugs and installed and removed. It is not just a feeling thing and this can be learnt?

This thread was also helpful: http://www.yamahasupertenere.com/index.php?topic=8671.0

Have you consulted the factory service manual?

It's not hard to change the plugs on the Super Tenere, but it is involved and rather time consuming, and as some who have done it or the valve clearance check/servicing have found out, which sparkplug cap/coil goes where is important (the Super Tenere uses two spark plugs per cylinder, and the spark coils are part of the plug cap). Certainly you can learn to change the spark plugs, and there are specific torque specs for the plugs in the service manual...

So I come back to that point - Do you have a factory service manual and have you referred to and studied it? That's your first and most important step if you want to take on this task for the first time, period. And trying to bypass or ignore that step is simply asking for trouble.

Is it easy to strip out a spark plug? No, it's not for an experienced mechanic... But yes, it's damn easy for someone who has not developed the "feel" and experience to know how tight to go. And has been mentioned, learning how much is *TOO* much torque on your spark plugs would be a very, very expensive, time consuming, and tool intensive task. ::025::

Dallara



~

 

[Mzee]

Re: Question on NGK Iridium Spark Plugs

Have you consulted the factory service manual?

It's not hard to change the plugs on the Super Tenere, but it is involved and rather time consuming, and as some who have done it or the valve clearance check/servicing have found out, which sparkplug cap/coil goes where is important (the Super Tenere uses two spark plugs per cylinder, and the spark coils are part of the plug cap). Certainly you can learn to change the spark plugs, and there are specific torque specs for the plugs in the service manual...

So I come back to that point - Do you have a factory service manual and have you referred to and studied it? That's your first and most important step if you want to take on this task for the first time, period. And trying to bypass or ignore that step is simply asking for trouble.

Is it easy to strip out a spark plug? No, it's not for an experienced mechanic... But yes, it's damn easy for someone who has not developed the "feel" and experience to know how tight to go. And has been mentioned, learning how much is *TOO* much torque on your spark plugs would be a very, very expensive, time consuming, and tool intensive task. ::025::

Dallara



~

This is a most helpful response. Firstly it asks the right questions. Yes I have the service manual. Thank you for pointing me to it again. Secondly it points to the task, and yes I am a complete amateur and hence the reason for weighing my options. I know that from how various folks respond, I am able to determine whether I should do it or take it to the dealer. Thirdly, it points to the risks involved. This is helpful, for gain I can weight whether this is for me or the dealership. Lastly I like this response because it leaves room for me to learn. In the meantime, I have decided that I will take it to the dealership and observe how the plugs are taken out and replaced. I will ask questions and then take it from there. Thanks everyone for the great responses.

 

[avc8130]

Re: Question on NGK Iridium Spark Plugs

I pulled my plugs yesterday. With setting plug gap and taking my time, it was ~1.5 hours start to finish.

The following has to come off:
Rider Seat
Right side cover.
Radiator side cover (you can struggle with the tank bolt but I find pulling the cover is faster and less frustrating in the long run).
Tank (pivot up)
Air box.

That gives you access to the plugs. You will need 10mm socket and wrenches. You will need a spark plug socket, ratchet and a few extensions.

I like to do 1 plug at a time so I don't mix up the wires.

All are very easy and straight forward except the right most plug.

Is this a DIY? It isn't much more difficult than an oil change. I'd expect to pay ~2 hours at a dealer. I'd probably combine it with a throttle body sync as most of the effort is the same you would save some bucks on the labor by combining the tasks.

ac

 

[mrpete64]

2014 es spark plugs?

Hopefully, this time, I have this question in the right forum location. What spark plugs do you recommend for my 2014 ES. I saw a post that said they used Denso Iridium IU24 plugs. Are these any better than what comes stock on the bike?

Thanks for your insight(s).

 

[Checkswrecks]

Merged a few spark plug threads into this one.


A very pertinent question and comment from Dallara on the previous page:

Just curious...Why do you want to use the Iridium plugs?
Are you having some issue with the standard spark plugs?


Reason I ask is that I am having spectacular success with the standard plugs. I replaced the original set at 16,500 miles, but only because I had already pulled them. The originals that came out looked like they could easily do another 16,000 miles or more. I have over 38,000 miles on the bike now, and I pulled the plugs at 32,000 just to see, and again, they looked nearly new, so they went back in.


From my experience the Super Tenere is very easy on spark plugs.Thanks!Dallara~

 

[2daMax]

Re: 2014 es spark plugs?

Hopefully, this time, I have this question in the right forum location. What spark plugs do you recommend for my 2014 ES. I saw a post that said they used Denso Iridium IU24 plugs. Are these any better than what comes stock on the bike?

Thanks for your insight(s).

I have been there with Denso IU24. Don't go there. It is not that iridium is not good, it is IU24 being not optimized for our S10 because the IU24 does NOT have a projected tip. The stock plugs has a 1.5mm projection further into the cylinders that keeps to the design. With IU24, you get better spark but with a -1.5mm distance away from the design spark point, you get a retard timing. I can say reduced performance, harder to start, and worse off fuel consumption.

Unfortunately for North America, there are no availability of NGK CPR8EAGP-9 PLATINUM plugs with projected tip. I have switched to this plug and unbelievable to some, T mode is 80% of stock S mode. S mode is Rocket mode. Getting 1km/l fuel savings also. Exhaust tone seems deeper but that's my subjective hearing. The price I pay is ridiculously low, US$4.20 each. And you will need to install the terminal nut cause it doesn't come with it. I transferred the nut from my IU24s. yes IU24 nuts are removable. That's the only good things about the IU24.....it is their nuts. LOL. Our stock plugs are not. Don't ask me how I know.

In case anyone traveling in South East Asia, do try to hook up a few sets. Or on-line, http://www.chongmotorclub.com.my/chongmotorclub.com.my/index.php?route=product/product&product_id=1163

I haven't bought from them before or am i endorsing them. I do not even know if they are willing to ship overseas. Purchase at own risk. There are other Malaysian on-line sites found in Google search. I bought mine from a local bike shop.

 

[Tenerester]

Merged a few spark plug threads into this one.


A very pertinent question and comment from Dallara on the previous page:

::026::

 

[TE2BA]

I searched Japanese Denso site and found that Denso has released IU24D for S10. 2,000JPY = about $20 each.
I will get a set when I go there next time and see how it works.

 

[TE2BA]

I searched Japanese Denso site and found that Denso has released IU24D for S10. 2,000JPY = about $20 each.
I will get a set when I go there next time and see how it works.

Finally, got them from Japan. IU24D has 0.5mm projected tip and it is listed as s10 replacement.
I installed it and ran 25 miles shake down. It started better, low end picks up better and both T and S mode is more responsive, noticeably.
So far so good.

Sent from my SM-G935L using Tapatalk

 

[ace50]

NGK 9198 Iridium IX CPR7EAIX-9 is cross reference for Denso IU24D and they are about half that price and can be bought in US.

At least that's what I've read. You may want to double check me!

 

[WJBertrand]

The IU24D looks like it has a conventionally configured tip and does not appear to have a projected tip compared to the OEM plug.

 

[2daMax]

The IU24D looks like it has a conventionally configured tip and does not appear to have a projected tip compared to the OEM plug.

Yeah you are right. It doesn't look projected.

 

[TE2BA]

Hi guys,

Denso 24 is NGK 8. So, I'm certain whatever 7 is colder. So, I wouldn't use it.

0.5mm projection is probably not very noticeable by a picture, but location of spark gap is very close to the OEM NGK and that's what I'm trying to show by the picture.
IU24 is -0.5mm instead of +0.5 for IU24D FYI.
It seems to run good, so I'm for sure keep it for a while and post a picture after while.

http://www.globaldenso.com/en/products/aftermarket/plug/power/spec.html

 

[scott123007]

Hi guys,

Denso 24 is NGK 8. So, I'm certain whatever 7 is colder. So, I wouldn't use it.

An NGK 7 is HOTTER than an 8.

 

[TE2BA]

An NGK 7 is HOTTER than an 8.

OK. My bad. It is hotter indeed. My CPR8B-9 was just almost perfect to a tad on hot side. So 7 is definitely to the wrong side.

 

[2daMax]

Hi guys,

Denso 24 is NGK 8. So, I'm certain whatever 7 is colder. So, I wouldn't use it.

0.5mm projection is probably not very noticeable by a picture, but location of spark gap is very close to the OEM NGK and that's what I'm trying to show by the picture.
IU24 is -0.5mm instead of +0.5 for IU24D FYI.
It seems to run good, so I'm for sure keep it for a while and post a picture after while.

http://www.globaldenso.com/en/products/aftermarket/plug/power/spec.html

If it runs good and better than stock then the plug is probably OK. I am running the Platinum plugs, NGK CPR8EAGP-9, projected tip. Worked great in T and S mode. T mode feels like 80% of S mode. Hardly use S mode now because T mode is no longer lame.

 

[Ramseybella]

Sent an email to NGK asked them when distribution of their CPR8EAGP9 will start in North America.
Very curious to what they say.