It can be found in all motorcycle or motor bike engines and matter of fact, some (DTS-i / Twin spark) engine comes with two of it. Its an electrical device which creates the spark inside the cylinder for the combustion of fuel for internal combustion engine.
Read more in wiki if you want..
What type of role does spark plug plays in our day to day life with Indian made motorcycles and motor bikes ?
- Mileage of your motor bike / motorcycle depends on quality and condition of your spark plug.
- Acceleration and top speed of your bike depends on the quality and condition of the spark plug.
- Smoothness of the engine is also dependent with spark plug. With a faulty one, one may face engine knocking (bike jerking / giving jerks like out of petrol), engine vibration and misfire.
- Engine may give starting trouble with warn out or bad condition spark plugs.
What is the spark plug in default or stock given in Indian (Bajaj / Yamaha / Hero Honda / TVS) bikes ?
Now, different bike comes with different spark plugs models as stock according to their engine design.
Stock / normal plus are,
Bajaj Bikes (Pulsar P150 / P180 / P200 DTS-i / P220 DTS-Fi / Avenger 200 / 220 DTS-i) -> Champion RG6HCC
Yamaha YZF R15 company given default / stock spark plug make and model -> NGK CR8E
Hero Honda Hunk / Karizma (ZMA) / ZMR stock or normal, default given plug ->NGK CPR8EA-9
Honda Dazzler / Unicorn normal and default company recommended spark plug -> NGK CPR8EA-9
TVS Apache RTR (160 / 180) -> Bosch twin head
How often do we need to change the spark plugs ?
The spark plug falls under wear n tear section and according to vehicle manufacturer specification and periodical maintenance chart, spark plug requires replacement at around every 10000kms mark.
What is the cost of normal spark plugs ?
- Bajaj (Pulsar / Avenger) -> (Champion) Rs. 90/-
- Yamaha R15 / Fazer -> (NGK Normal) Rs. 110/-
- Honda -> (NGK Normal) Rs. 110/-
- Hero Honda -> (NGK Normal) Rs. 110/-
- TVS RTR -> (Bosch) RS. 110/-
What are the after market options available for better spark plug ?
Many of these plugs are inter changeable. For example, we have found good results in terms of mileage and performance by using Bosch twin head plugs in Hero Honda Hunk / Honda Unicorn and even in lower CC pulsar range (150cc / 180cc).
Where as we have seen and observed the reduce of vibration by upto 30/40% when using NGK Iridium IX spark plugs in TVS RTR 180 or 160.
We have seen P220 and R15 returning exceptional mileage figures and smoother ride when using NGK Iridium IX sparks plugs in high speed highway cruising in longer runs. For example, in a 600kms test run in GQ standard roads, while maintaining 85 arvg speed, in double, P220 and R15 have given 43+kmpl mileage, compare to a bike running stock, returned around 37kmpl figure.
The better aftermarket products, like “NGK Iridium IX” plugs are known to last 3 times longer than normal ones however they come with a price tag of Rs. 550/- each.
These aftermarket plugs helps with a continuous high temperature and stable sparking compare to the stock default given plugs.
If you consider replacement of your spark plug with after market options, then make sure you are done with your running in phase before placing your spark plugs. Best time for after market product for modification is after first 3000kms of your bike is over.
The article is applicable to almost all performance based Indian bikes, namely,
- TVS Apache RTR 160 / 180
- Bajaj Pulsar P-180 / P200 / P220 DTSi / Avenger 200 / Avy 220 DTSi
- Yamaha YZF-R15 / Fazer / FZ-16 / FZ-S
- Hero Honda Karizma (ZMA) / ZMR / Hunk
- Honda Dazzler / Unicorn
You may also read, Test -> NGK Iridium on HH ZMA-R
It would be helpful if you could post the model details for the Iridium and Bosch sparks. And if there is any good online source to buy these sparks.
Thanks Hunky…
Hi,
Model -> OK, I would be compiling one article !!
Online store -> eBay is there !!!
Thnx for the comment !!!
hunky i want 2 know another thing,is dare any relation btween da age of spark plug nd mileage?if yes,den plz tell me da details…nd sometime aftr putting ngk ix we used 2 see dat mileage is drastically dropped in city riding where as it increased in highway conditions,so y dis things r happen?
Hi Hunky
can we switch “NGK Iridium IX” to any indian bike as per their site its show some different models like
BAJAJ Pulsar 220 DTSi (Left side)
1.NGK G-Power-CR9EGP
3.NGK Iridium IX-CR9EIX
BAJAJ Pulsar 220 DTSi (Right side)
1.NGK G-Power-CR8EGP
2.NGK Iridium IX- CR8EIX
TVS Apache
1.NGK G-Power-CR7EGP
2.NGK Iridium IX-CR7EIX
the models no. are different so need more light on that how they different form each other or nothing like that
Hello Sir,
There is a difference between the words, “Can” and “should”… As per fitting goes, yes some of the models are interchangeable but as per the performance goes, one should stick to the recommended models by NGK
thanks..
Hi Hunky! This was a very good article. Best thing is that this article is based on practical figures not just theoretical things which one can also read on any other wiki site so this was kinda different. I need some advice from you. Should I switch to NGK Iridium spark plugs? Will this boost some performance without effecting mileage of my CBF Stunner carburetted version?
Hello Sir,
Sorry for a late reply…
Yes, you can opt for NGK Iridium IX plug.. NGK Iridium will offer you a lot smoother and vibs free engine but it may have a negative effect in mileage figure if you ride your bike very less (like may be 20/30kms a week)..
NGK offers really good mileage in highways and even city (around at-least 30 to 40kms a day) when you ride your bike more..
The Model number for Stunner is -> CPR7EAIX-9.
Make your switch if you run more.. Dont switch if you running in less
.
Thanks..
Thanks for your advice Sir! Actually I ride it like 20 kms a day (approx.). I’m a college student so it is not fixed. Sometimes I ride it like 30 kms within 3 days but sometimes it goes over 60-70 kms a day. So on an average, it should be somewhere around 80 kms in a week. So what do you say, should I go for Iridium plug or should I stay with the default one?
You decide.. Which percentage is on higher side..
Unless your riding is more, there wont be any benefit with mileage but yes, with Iridium, bike will feel lot smoother and responsive.
Rs. 550/- is not a value for money product and also if you ride less, it may actually provide negative figures in mileage.
Personally I would say, better for you to stick to the stock setup
Thanks..
Thanx Sir!
One more thing Hunky! By negative figures did you mean decrease in mileage figures as I don’t want any decrease mileage of my bike?
Yes, by negative figure, I meant decrease of mileage !!
Hi bro!
Sorry I dont have any idea on this spark plug stuffs. From your article I gained some info.
I have an Apache RTR 160 and I’ve crossed 14500 kms now. I wish to install this Iridium spark plug. Please advice me on this. Which model should I go for?
Hello Saran,
Yes, you can opt for NGK Iridium IX plug.. NGK will offer you a lot smoother and vibs free engine but it may have a negative effect in mileage figure if you ride your bike very less (like may be 20/30kms a week)..
NGK offers really good mileage in highways and even city (around 30 to 40kms a day) when you ride your bike more.. Although the mileage is a depending on amount of riding you do, but one thing is almost guaranteed, that’s a smoother engine and reduce of vibration by at-least 30%
..
TVS Apache RTR 160 would require NGK Iridium IX -> Model CR7EIX
Thanks.
Thanks Hunky.
Your information was really helpful.
I drive a minimum of 50-70kms daily. So, I think I can go for the iridium spark plus.
Thanks again for your kind response.
Thanks for commenting, we are happy to read the comments !!!!
I have P150cc 2003 model i hav run this vehicle around 1lak kms around 80k i repaired engine but till now i hav nt changed spark plug. still its running in good condition and milage is around 50 from the begining.
Hi Hunky,
I have a cbz xtreme 2007 model which clocked over 53000 kms,please advice the right iridium plug for y cbz.
Also which is the suitable spark plug for HH cd100ss/cd deluxe other than the stock plugs???please help me out…
I have FZ-S i crossed 4700+ km & it gives milage about 30 km/L if i get iridium ix what milage could i get after changing the spark plug and what is the model no. of plug?
And the reason for changing is vibration and acceleration.
good pm sir i got interesting reading some idea it comes from motor bikes i have my Fz16 150cc model 2012 in want to improve the speeding performance of my bike what parts of the engine would i modify it is right the coil and the spark plug or the sprocket
Hi Hunky,
I have a Pulsar 200 NS which has three spark plugs and have done 7500 kms on it and nowadays the bike has a lot of vibes and engine stalling problem, and when checked one spark plug has gone bad so is it ok if I change on e plug to iradium and keep the other two as stock ?? Please Advise…
Hi Arun,
Please note there are 3 type of NGK plugs.
* Normal
* G-Power
* Iridium
Now if you are changing, either you change all three with similar model or you dont.
For regular commuting you may not need Iridium, stock may suffice, as in usual, its recommended to change the stock plugs once a 10k kms.
So I would say, if the budget is tight, stock plugs will suffice so change or replace it with stock only.
Thanks.
Actually I had not knowledge about functions of spark plug, but after seeing the top gif picture, I learned its functions. You should use Bosch Spark Plugs for better performance of your vehicle.
Can I use ApacheRTR’s Bosch twin head Spark Plug on My Hunk
Hi,
Give it a try, you can use..
However, those who used known to us have given mixed feedback, some were happy where as some were happy to stick with NGK default
sir, i own a honda unicorn 2012 model and have run it 7000km with the stock spark plug.now i want to ungrade it with an iridium one.could u please advise what exact model no of iridium spark plug(with exact reference to heat range) n power cable be most suited for my ride?
waiting for your most valued reply…lots of best wishes for u
regards…Sujit Basu
Hello Sujit..
Sorry for a late reply but we have been busy scratching our heads and trying to obtain some light directly from the NGK product team..
See, we here at NexGenBikes.com dont have such advance facility to test with accurate measurement.
Now there are to aspect to this, as what can be done and what should be done..
If you check, plugs meant for Apache RTR series is a direct fit into Unicorn but then again, should you do that ??
Makers of NGK advice you not to and they advice you to either stick with the stock NGK or use G-Power..
Sorry, may not be the answer you are looking for but this is the feedback we can offer..