About quality and texture - The ER8EH spark plug from NGK is a standard resister plug with a heat rating of 8, made using high quality processes and materials.About the feeling of use - After using the included Denso spark plug from the big bore kit I began to have idling issues and difficultly restarting the engine when warm. After identifying and installing this alternate spark plug from NGK my issues have now been resolved.Products to buy together - With the spark plug being a regular service item, key products to purchase when carrying out maintenance on my motorcycle would be crush washers, gaskets and the like as these products are cheap and convenient to have on hand.Difficulty of installation - The installation of the ER8EH spark plug is an simple task that took 0.2 of an hour to complete. Some mechanical aptitude and the use of basic hand tools is all that is required to firstly check the gap between the center electrode and the ground electrode and then install the spark plug onto the cylinder head.Cost performance and comparison with other products - I find the cost of all the products NGK sell to great value when compared to what most other companies sell their products for and the ER8EH spark plug is no different.About shipping and packaging - With there being no cost difference between sea freight and EMS for the ER8EH spark plug, I chose EMS for an earlier arrive date. The part was extremely well protected while being covered in bubble wrap and surrounded with air pillows in a sturdy cardboard box.Any concerns, cautions, or advice when purchasing - Webike Japan is the first place I look to for all my motorcycle needs. From service parts to performance products and even motorcycle gear and apparel, Webike always seem to satisfy my needs in regards to availability and pricing.
View Detail
- Instock
10.75 USD (1,673 JPY)
Delivery Information
In Stock, Ships within 24 hours.
Estimated arrival date around
Product detail
[Stock Number] 4011
[Shape] Screw type
[Size]
Screw Diameter: φ8.0mm
Screw length: 19.0mm (semi-screw type)
Hexagon dihedral width: Hex 13.0mm
[NGK part number] ER8EH
[Type] Resister Plug
Plug unit and terminal image: [3-b] See image 6
[Heat Value] 8
[Compatibility Information] DENSO Compatibility: Y24FER-C
Compatible HONDA stock part number: 98049-58716
**Even if you purchase in units of 10 pieces (1 box), it will not be delivered in 1 box.
*Terminals, tightening angle, etc. may differ depending on the model.Please refer to the link for the detailed fitting and installation instructions..
* The image is only for reference. The image shown may differ from the actual product.
Webike has all NGK plugs in stock! .
* The item may be temporarily out of stock due to manufacturer shortages, etc
Stable ignition performance and combustion efficiency at a reasonable price.It brings out the true performance of the engine.
[Features of Register plug]
A ceramic resistor is built in to suppress the ignition noise generated at the time of spark.
・The built-in ceramic resistor suppresses the ignition noise generated by the spark.
・Prevents radio noise in car radios, mobile hams, and car telephones.It also prevents the engine control computer from malfunctioning due to noise.
*The effect varies depending on the vehicle.
[About the shape of the plug terminal]
●Select a terminal shape that matches the engine and plug cord installation side.
There are three types of plug terminals: integrated type, separate type, screw type, and punch-and-caulk type.
Mainly, "integral type" and "punch caulking type" are used for four-wheeled vehicles and "screw type" for two-wheeled vehicles, and "separate type" is available for plugs used for both four-wheeled and two-wheeled vehicles.
In addition, the terminal part of the "separate type" can be removed, but the terminal part of the "integrated type" and "punch-and-caulk type" cannot be removed.If you try to remove it forcibly, the terminal part may be broken.
In case of using the "separate type" as the "screw type", remove the terminal nut.
When using the product with the terminal nut attached, make sure that it is not loose, and if it is loose, tighten it lightly with pliers or the like.
| [Features of NGK plug] |
| - This is a super "wide range" plug - |
| The center electrode , The center electrode is a "copper cored" construction with copper sealed to near the tip to allow a large amount of heat to escape quickly. The result is an ultra "wide range" plug that is resistant to burning and smoldering. |
 |
| Comparing the thermal characteristics of plugs with copper cores and plugs without copper cores, the plugs with copper cores have superior thermal characteristics and fouling resistance, and a wider thermal range. |
| ■ Heat value of the plug |
| - High alumina porcelain from New Ceramics is used as the insulator - |
| - Excellent insulation at high temperature and reliable sparking. ・Excellent heat conductivity and prevents seizure. ・High thermal shock resistance (rapid heating and cooling) and excellent mechanical strength. |
| - Strong and airtight in construction - |
| Because the insulator and the main metal fittings are joined by special powder, it is excellent in airtightness and strong in structure. |
| Special Nickel alloy electrodes are used for superior durability. |
 |
| - Corrugations in the insulator ensure good insulation and prevent flashover - |
| During sparking, a high voltage is constantly applied between the terminal and the main unit bracket. High voltages try to leak along the surface of the insulator and flashover is more likely to occur if the required voltage between the spark gaps is high. In order to prevent flashover, insulator corrugations (folds) are provided to increase the insulator surface distance between the terminal and the main fittings to ensure insulation and prevent flashover. |
| What is a flashover... |
| It is a spark between the terminal and the main unit fitting as shown in the image. |
 |
| ■ Flashover |
| ■The advantages of the plug |
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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Installed on: HONDA Monkey 125
Aug 5, 2024
The one you want to use with the Kitaco Neo head on the Honda Grom/Monkey 125 platform
About quality and texture, I can confirm that the quality is great and that the materials used are a combinations of copper, porcelain and nickel alloy for the standard plugs from NGK.About the feeling of use, The one you want to use with the Kitaco Neo head on the Honda Grom/Monkey 125 platform. Performs flawlessly like all the NGK spark plugs I have used in the past. Products to buy together, To maximize the performance of your spark plug it would be ideal to also add an upgraded ignition coil to the system, Takegawa have a hyper ignition coil that you can add to your cart to achieve this.Difficulty of installation, I can say the fitment of the spark plug for my installation was very easy due to the ease of access to the cylinder head and simple nature of the task.Cost performance and comparison with other products, The pricing of the product is great. You receive a spark plug made of quality materials from a well known brand. Pricing of stand spark plugs from other brands is similar where as iridium spark plugs are much more expensive.About shipping and packaging, My order was shipped within 48 hours of me placing the order and and I received a few emails advising me of the status up until the order was dispatched. The order arrived within the estimated date range and was extremely well packaged. I found the link supplied to track my order very useful while I was waiting for the order to land in the country.Any concerns, cautions, or advice when purchasing, I have no concerns or cautions when purchasing from Webike. I cannot recommend Webike enough for the majority of your biking needs. They not only sell aftermarket parts and bike gear but also OEM parts for your repairs and servicing needs.
View DetailInstalled on: HONDA MONKEY
May 25, 2024
This fixed a bad misfire i had on my bike and was very well priced. It fitted really easily and i was very glad that it arrived in a safely packaged box.
View Detail
May 3, 2021
The EPlug is used because the external head has been modified. This is a model that is not often found in motorcycle shops so it is nice to have it readily available. The reliability is neither good nor bad, the stability is Number one, because it is thought that the Iridium plugs cannot be fully utilized unless it is a super strong coil like the iron core is sticking out, this is enough.
View DetailJan 8, 2018
Takekawa Super head + R4v required for purchase.
It is very helpful because it is not put at Home center.
Stable operation with safe NGK made!
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