【NGK】Iridium Plug DPR8EIX-9 4274 Review

NGKWindshield IRIDIUMSpark plug

I think the texture is good and the cosmetics are good. View detail

Uotani and Quantity:Exchange in Set

It was replaced along with the cord and Cap when the Uotani was installed.
Iridium plugs do not require Gap adjustment, but were adjusted to 1.2mm for the Uotani installation.
It might be interesting to compare it with the Normal plug, although I haven't done it yet. View detail

Made by Windshield IRIDIUM, which I have been using for about 20 years now.

Iridium plugs have been a favorite of ours since their appearance.
I am not dissatisfied with the performance of the Standard Plug BP5HA, but I use it as a talisman because it makes a difference when I have a Large fuel consumption problem in a Carburetor car (extremely cold mornings, or when going downhill on a long slope with almost no throttle).

I have never felt the Power up or Torque up as described by Manufacturer.
But with the Standard Plug BP5HA, it keeps igniting well (I think) even in a situation where it could have possibly lost fire, so I have been buying it for lightly 20 years now.

In particular, LargeEngine Displacement Volume TWIN and Single engines are prone to fuel mixture collapse except at full throttle (a different story from the carburetor setting), so the peace of mind that ignition is solid even in situations where the air-fuel ratio is clearly not correct is irreplaceable.
Windshield IRIDIUM was originally made by Denso, but I had a bad experience with them in the past, so I use NGK products.
I guess Denso products are already Large sturdy now, though.

Replacement time is Whenever I feel like it." It is
When I remove it and look at the electrodes, nothing has changed, so I could use it forever if I wanted to. It seems as if it could be used forever if it wanted to.

Plug replacement is one thing, but a clean plug hole is even more important, so we put a tap through the plug hole to remove carbon without having to replace the plug.
If the plug hole cannot be easily screwed in by hand to the end, it is a sign that Carbon has accumulated in the plug hole.
If Windshield IRIDIUM is the way to go, at least Plug should be able to turn round and round by hand to the end! View detail

NGK Iridium Spark Plugs for Honda CBX125 1993

A friend wanted an iridium plug for their CBX125 and Webike was the place to get it. This was easy to find using the tools provided by Webike and all the links to the manufacturers websites. They had previously had an iridium installed and wanted to keep to the one they are used to. Ordered along with other parts so the shipping was good too. Arrived with no faults or issues. The outer box had been sealed with extra tape to ensure, nothing could fall out or escape during transit. Any empty space was filled with air pockets and bubble wrap so nothing could move too much and damage other more delicate parts in the box. The plug arrived in 100% perfect condition. Fired on test and then fitted to the bike. This now makes the bike run as it should and no more bogging down and getting misfires. Very pleased with the result from this plug change. Thank you Webike View detail

The usual reassurance

Windshield IRIDIUM is a replacement for Standard Plug BP5HA.
I wasn't dissatisfied with the Omotehito Plug, but I thought that it might be OK to spend a little more for a better spark. It is not something that needs to be replaced that often, so I decided to convert it to Windshield IRIDIUM.

Nothing special to say as the replacement is just removing the plug of the thing and replacing it.
People who fail at this will fail anyway, no matter what they do.

Before removing the plugs, we need to check the plug holes for air blow, plug caps and plug cords, check the burn and wear of the removed plugs, and remove any carbon that may be attached to the plug holes. It's what you do." The thing of.
You must be able to twist Round and round to the end by hand.

PlugGap remains the standard designation.
Since the ignition Coil is OEM, it does not expand the Gap just because it is a Windshield IRIDIUM.

How it feels to use it. No change. It is
If I had to say something, I would say that the Torque seems to increase slightly when the engine is driven in a way that repeats full-closing and half-opening in the mid-speed range, but this is probably a side effect of the ignition of the air mixture, which had been misfiring.
I don't think it is something to replace for power up or torque up, but I guess it has that effect.

Standard Plug BP5HA has been driven more than 50,000km with no maintenance, but the terminals have not been visibly reduced and remained in good condition until the end.
This should be the same when replaced with Windshield IRIDIUM.

If you have a severe setting like 2ndRacer, the plug is a consumable item and will probably be replaced by VANVAN, but if you drive a 4st production car on the street, it will not be replaced frequently, so I think it is better to replace the plug with a windshield IRIDIUM if you are going to replace it anyway. I think it is a good idea to replace it with a windshield IRIDIUM. View detail