Motorcycle Spark Plugs Reviews

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250SX-F Spark Plugs Clear all

DENSO

11 Jul 2024

Iridium Racing Plug IU01-27

Fits: ADIVA AD250/IE, APRILIA SPORTCITY CUBE 250IE, GILERA RUNNER VX125 4T, HONDA HORNET S (reimported), KAWASAKI NINJA 650R (reimport), MALAGUTI MADISON RS250, PIAGGIO BEVERLY250, PIAGGIO LIBERTY150/LE, PIAGGIO LIBERTY50, PIAGGIO VESPA 50ET4, PIAGGIO X8-125, PIAGGIO ZIP125 4t, SUZUKI BANDIT600/S (reimport), SUZUKI GSF600/S (reimported), SUZUKI GSX-R250R, SUZUKI GSX600F (reimported), TRIUMPH DAYTONA 675, TRIUMPH SPEED TRIPLE, TRIUMPH STREET TRIPLE, TRIUMPH TT600

Japanese Webike user

installed on

3/5

In NINJA.

I thought about using it for NINJA, but decided not to because Life seems to be short. View detail

NGK

20 Jan 2024

Standard Plug CR9EKB 2305

Fits: MV AGUSTA F4-BRUTALESerie ORO, MV AGUSTA F4-BRUTALE S, KTM 450 SX-F, MV AGUSTA F4AGO, MV AGUSTA F4Serie ORO, MV AGUSTA F4S, MV AGUSTA F4SPR, MV AGUSTA F4SENNA, KTM 250XC-FW, KTM 450 SMR, KTM 250 XC-F, KTM 250 XC-F, HUSQVARNA FE250, KTM 250 EXC-F, KTM 250 SX-F, BMW G450X, APRILIA RSV4, APRILIA RSV4 Factory R, APRILIA RSV4 R 1000, APRILIA TUONO V4

Japanese Webike user

installed on

5/5

Reliable

I use it on my Kawasaki Jet ski.
I'm replacing it at the same time as Oil, so as much as possible.
The lower price would be more helpful.
I feel safe in purchasing this product. View detail

DENSO

14 Oct 2023

Iridium Racing Plug IU01-27

Japanese Webike user

installed on

4/5

Engine might be good ?

This is the first time I tried the Racing plug.
I heard it's Life good.
First of all, the engine starts well. When I lightly stirred the Axel, it seems to turn a little lightly.
I'm looking forward to running the car at full throttle during the next Sports run. View detail

DENSO

26 Mar 2023

Iridium Racing Plug IU01-27

Japanese Webike user

installed on

4/5

Is the shape Large sturdy?

Used for ZX-14R. Chose this product for its long life because replacing plugs is so large and strange that it kills me.
I think it is harmful because the position of the spark is farther from the combustion chamber Center than OEM.
It is used for MaintenanceCycle reduction because it is Large strange to remove it.
I bought six of them, even with four cylinders, because I don't want to use the ones where the orientation comes in an undesirable position.
It is not so relevant for DOHC cars where the plug comes to the center of the combustion chamber, but for 2Valve cars where the plug comes to the center of the combustion chamber, it is not so relevant.
The theory behind the diagonal stab Plug is to have the Minus electrode come to the Center of the combustion chamber. View detail

DENSO

06 Jun 2022

Iridium Racing Plug IU01-27

NO NAME

installed on

5/5

Good product

Delivery on time Well packed and secure The product is in accordance with the information posted on the website Good product quality, correct Japanese goods View detail

DENSO

27 May 2022

Iridium Racing Plug IU01-27

NO NAME

installed on

5/5

The best plugs period

Great product and great service as usual from Webike Japan, have used these plugs before and now using them in my ZX14R Ninga, so far they are performing great couldn't be happier with them, more power and quicker acceleration of the start as you would expect from these plugs, the price and delivery from Webike is the best you will get, I live in Queensland Australia and shop with Webike Japan for everything now, could not recommend anyone better. Steve Brisbane Australia View detail

DENSO

01 Jun 2021

Iridium Power Plug IU27A

Fits: bimota SB8R/SP/K, bimota SB-7, YAMAHA YZF-R1(Reimport), YAMAHA WR250R/X, YAMAHA MAJESTI FI, YAMAHA FZ6-S FAZER/N(Reimport), YAMAHA FZ1/Fazer, YAMAHA fz1 fazer (reimport), TRIUMPH TT600, TRIUMPH TIGER, TRIUMPH STREET TRIPLE, TRIUMPH SPRINT ST, TRIUMPH SPRINT ST, TRIUMPH SPEED TRIPLE, TRIUMPH SPRINT RS, TRIUMPH SPEED TRIPLE, TRIUMPH SPEED TRIPLE, TRIUMPH SPEED FOUR, TRIUMPH DAYTONA955i, TRIUMPH DAYTONA 675

Japanese Webike user

installed on

5/5

Good spark!

I've been using this Iridium power plug ever since I switched to my previous RSV4 Factory and then RSV4 RF (2016).
In the case of RSV4, NGK's Windshield IRIDIUM is not compatible, so I think Denso is the natural choice.
For gasoline engine, good mixture, good compression and good spark are important, so we expect good spark by replacing with this Plug.
As the effect of Iridium plugs, there are low fuel consumption by the increase of combustion efficiency, improvement of engine power, improvement of acceleration, improvement of startability, carbon does not accumulate easily, etc., but I think that the difference to the extent that it can be felt is not obtained, and in my case, I do not know the difference from the OEM RPlug from the beginning. I don't know the difference from OEM RPlug because I have changed to Windshield IRIDIUM.
But for now, I think the engine power is out when I run Circuit, and the starting is very good even in the morning of winter, and the mileage may be a little better than other RSV4 when I go Touring.
Well, when it comes to fuel economy, it's pretty muchQuantity on how you ride.:Pair (for Left and Right) It may not be helpful because it is done.
By the way, when I did the dyno measurement before, it was 187ps at the rear axle, so I guess there is some power coming out. (Iridium power plug, DNAAir Filter, AKRAPOVICFull Exhaust System, measurement at the beginning of autumn with the RACINGMap attached to the Full Exhaust System)

Next time I'm going to replace it with an Iridium racing plug.

By the way, changing the plug in the RSV4 is quite a hassle, especially changing the front bank.
When ECU, variable Air Intake Funnel, Air cleaner box are removed as shown in the photograph, it pulls out the Brown pain Brown long Plug cap and removes the Plug which is considerably in the back of the Head, but when Extension is attached so that the Plug wrench may reach to the Plug The part of the Head of Frame interferes and does not enter, and even if somehow it enters, when Plug is removed, this time it does not remove. 。 It may not be able to be removed without using the technique that the Extension and the Plug wrench are pulled out separately by removing the Plug wrench from the Extension once when combining the Extension and the Universal joint of the exquisite length (about 13cm) and pulling it out. It may not be possible to remove it unless you use the following technique 。 So I decided to use the middle for the work's Kill. View detail

DENSO

31 Jul 2020

Iridium Racing Plug IU01-27

Japanese Webike user

installed on

5/5

Physical Plug

I put it on a YAMAHA X1R car model.

Because it is a single-cylinder motorcycle, the Plug of the child is a little high, but it was excited and installed.

Originally it had a NORMAL plug, but I think it's so different that you can feel it burning.

It starts well and runs even if the carburetor settings are a bit off. View detail

DENSO

31 Jul 2020

Iridium Racing Plug IU01-27

Japanese Webike user

installed on

4/5

Is it the Brushbo effect? (Lol)

I changed to Iridium plugs when I changed the plug.
The startability is definitely better now that I've replaced it, but I think this is more due to the fact that I replaced it with a new one than because it's Windshield IRIDIUM.

Because the shape is so obviously different, it may be more effective than the Standard Plug BP5HA, but I think about half of the effect is the Brush-boom effect from replacing it with Iridium plugs. (Lol) View detail

NGK

27 Jun 2020

Standard Plug CR9EKB 2305

Japanese Webike user

installed on

5/5

You can be sure of that

JapanManufacturer is the best company to work with
I'm still using it and it's working fine
On the contrary, I'm anxious about a non-NGK Plug, but I'm worried about it … View detail

DENSO

01 Apr 2020

Iridium Racing Plug IU01-27

Japan User(translated)

installed on

5/5

very good

Cell to Engine is very good, and Idling is also very good
It is stable and has no loose fluctuations
Low speed, medium speed, high speed and no loss
Response is now up to high RPM and very good
If you have replaced the Exhaust System with an external one, I think it may be necessary View detail

NGK

30 Sep 2019

Standard Plug CR9EKB 2305

Japan User(translated)

installed on

4/5

OEM compatible and cheap

Ducati's MULTISTRADA 1000DSEnduro OEM Plug is MAR9 A-J for about 2,500 yen per bottle and times; 4 bottles for about 10,000 yen
On that point, CR9EKB is 864 yen per bottle and times; 4 bottles for 3,456 yen
The price difference is obvious
The difference between the two is that the size of the Plug wrench is 14mm for the OEM and 16mm for this product Only different? So what is the performance of the Plug? But the price is so low that I'll just have to wait and see
I drove about 100km after changing the Plug, but I don't feel any discomfort View detail

DENSO

02 Mar 2018

Iridium Racing Plug IU01-27

Kim Yong Jin

installed on

5/5

that's great

First of all, I want to praise the delivery. This little guy came in a very sturdy box for shipping. Also surrounded by small anti-shock newspapers, I had to look carefully for where it was at first. I don't regret buying this guy because it has passed the proper mileage and it's time to replace it. I'd like to start with praise for shipping. The little guy has been put in a very sturdy box to be shipped. Surrounded by small shock-proof newspapers, At first I had to look carefully where I was. I will not pass on the purchase of this guy at the time I need to change past the appropriate operating kilometer. (translated by Google Translator) View detail

DENSO

24 Jan 2018

Iridium Racing Plug IU01-27

NO NAME

installed on

4/5

My opinion

HELLO I'M SATISFIED OF THIS PRODUCT. SO I NOTICED AROUND 5000 RPM ,THE ENGINE SEEMS LIKE TO HAVE BLOWS. AS IS AN RACING PLUG YOU HAVE TO MAINTAIN A CERTAIN POWER FOR AVOIDING BLOWS.UP 5000 RPM YOU HAVE GOOD SENSATIONS. View detail

DENSO

02 Oct 2017

Iridium Racing Plug IU01-27

Japan User(translated)

installed on

4/5

The ride taste changed.

I exchanged Plug because it exceeded 11000 km. Although it is an impression of about 500 km,
The attachment of Axel at 1500-3000 rpm improved, and the high rotation also turned well
I think. 5 speed 40 km is easier to run. Just 2000-3000 Partial
I feel that the area became irritable, and it became difficult to maintain a little with. I want to increase the vibration...
Because the heat value is not matched, the original Plug may be more comfortable for regular rotation. I am worrying about returning..
Looking at you.. View detail

DENSO

14 Sep 2017

Iridium Power Plug IU27A

Japan User(translated)

installed on

4/5

Life is short

Motorcycle reacts to Linear to Axel who knows that Pickup and Torque are going up. Becoming Peeky If it says badly Replacing it As the thinness of the fuel in the low and middle speed region became particularly concerned, it was mostly a matter of concern
Unfortunately the startability deteriorates with about 3000 approx. Installation Engine Stall when opening Axel near Idol
EngineStall may be fuel thin as well?
View detail

DENSO

13 Jul 2016

Iridium Racing Plug IU01-27

Japan User(translated)

installed on

3/5

For Race

I installed it in SC 57.
It is an impression of an amateur.

Full power
Power commander installation (Map is DL from Site)
Comparison with OEMPlug.

Idling is not stable.

It gets stuck at low rotation.
Especially when you start off on a town ride it will be noticeable.

Also, if you cruise around 4000 to 6000 turns, After Fireia will happen. "Pan!" Although it is not quite so good you will hear a pom-pombolic sound.

I feel that it is not much different from NORMAL around the power band.

Can you feel the difference when you run Circuit.
In town riding this plug was unnecessary. View detail

DENSO

07 Jan 2016

Iridium Power Plug IU27A

Japan User(translated)

installed on

4/5

DENSODenso Iridium Power Plug IU27A

I used Denso's Plug for the first time.
IU 27 A, not IU 27's polarity, is unipolar.
Iridium plugs had never been put in MONSTER
I'm looking forward to it but startup ability and dandruff rise are listed. View detail

DENSO

12 May 2015

Iridium Racing Plug IU01-27

Japan User(translated)

installed on

5/5

Idling, Response dramatically improved

I only used NORMAL's Plug, but I tried the Racing plug for the first time.
I recognized the difference from the moment I installed the Engine and attached it. It is also good and Idling is stable.
Clearly the Response was getting better.
As I actually ran, the feeling of Power increased and there was nothing wrong with it.
I will check it while using Plug life. View detail

DENSO

21 Dec 2009

Iridium Power Plug IU27A

Japan User(translated)

installed on

5/5

It exchanged for the iridium of the denso from pure NGK.
a form is completely different first -- ~ -- Why is different like this? it is wonderful.
Although engine oil and an air filter are exchanged simultaneously, a response is sharp too! If it exchanges from an authentic positive one, it will be an iridium plugs too!! It is a five stars! View detail