NGK (6681) DR8EIX Iridium IX Spark Plug, Pack of 1

Bought this for my X-pro titan 250. Fit perfectly and works as it should. Not much else to say about it. Bike fires up every time effortlessly.

Nice quality sparkplug. Fine tip iridium for long wear and seems to help my old Yamaha xt350 for better starting and to run a bit smoother all rpm’s.

Spark plugs are all the same, right? Not so much apparently. After doing some research on the subject, I found that since Iridium is so much more tolerant of heat and abuse, the center electrode can be a fine wire which creates a tighter and more consistent spark and will not melt when it gets up to combustion temps. I noticed immediately that my bike ran better- after the engine warmed up, I found I had to turn the idle down a bit. Engine revs quicker and starts much easier- noticeably so. The old plugs only had 3k miles in a Honda 750 4cyl and were tan and fairly clean.

Fantastic!! I have a 1985 Yamaha Maxim-X that was getting harder and harder to get started when cold. A few people on a user forum highly suggested that these plugs should make a big difference. I dropped them in and almost before I could let go of the starter button the bike was running!! They've been working just as great so far this season. Very, very, very much worth a few extra $$'s. Especially given how long they should last. A couple of points: Be careful when gapping them, try not to touch the spark point itself. It sounds like the iridium could crack if you're not super careful. Many people have said these things can easily handle tens of thousands of miles, so for many bikes this might be the last plugs you'll ever have to buy.

I've recently changed to the Iridium plugs for my Honda XR200R. The bike starts on the first kick and hot restarts are a lot smoother.

I debated getting these because I had read speculation that I'd need to get non-resistive plug caps since these plugs have built-in resistors. Honestly, perhaps the additional resistance might make a difference in terms of attenuating spark or intensity at much higher RPM than I tend to run, but I rarely exceed 7000RPM in my old Honda CM400C and I have noticed no weakness or decrease in performance at higher RPM. On the contrary, I love these plugs because they seem to start faster and more reliably, burn cleaner than the stock plugs, and deliver excellent and consistent performance and quick acceleration. They seem "forgiving" when the engine isn't tuned perfectly. I use them with the stock resistive caps. I think for most people, the higher resistance will not make any difference and is more of a consideration in terms of eliminating high frequency radio interference, not altering engine performance. These may be "overkill" for an old classic bike, but my expectation is that they will last longer and perform / start more consistently in a wider range of temperatures, paying off in the long run.

Starts and runs better!

I purchased one of these expensive spark plugs ($8.00)for my old Honda ATV which runs great but sometimes takes a couple of pushes on the starter button to fire it up; I replaced a fairly new NGK "normal" $3 spark plug just to see if there would be a noticable difference.....there was. It fired up before I could release the start button and did not need any choke. Runs better too. I used to have to let the ATV warm up or it would hesitate slightly going from 1st gear to 2nd gear, now it requires zero warm up. I should get paid by NGK for this write up....but it is a superior spark plug with at least my application.

Högkvalitativt tändstift som fungerar bättre till mc:n än orginalstiftet- rekommenderas.

Nice

Muy buen producto, cumple con lo que promete una chispa más estable, y la verdad es que si que se puede notar la diferencia al pasar de la versión normal a la de iridium, además que que mejora bastante la respuesta al acelerar.

Super bougie Iridium je recommande

War für die Brixton Sunray 125 passt und fährt sich gut.Bisher 60km ohne Probleme.