What's the story with the BR9EYA plug? I have seen it mentioned a few times on here. What's better about it?
Spark Plugs
- Thread starter Seabass152
- Start date
plug
that's the wrong plug your missing the i
that's the wrong plug your missing the i
I don't know why they would make a fuss about them, they're only NGK V-Power plugs. NGK Irridium plugs (BPR9EIX) are better.
NGK Irridiums are the only plug I use in my sleds.
For those wondering about the difference between the BPR9ES (OE), BR9EYA (V-Power), and the BPR9EIX (Iridium) go here. They don't go into great detail, but they do give an explanation on each type.
https://www.ngksparkplugs.com/products/spark-plugs
Here's NGK's FAQ page about spark plugs.
https://www.ngksparkplugs.com/about-ngk/faqs/spark-plug-faqs
Here's some pics of the 3 plugs mentioned (I'm using the pics from this business as a source for the difference between these 3 plugs):
BPR9ES: https://www.ngk.com/product.aspx?zpid=9504
BR9EYA: https://www.ngk.com/product.aspx?zpid=9582
BPR9EIX: https://www.ngk.com/product.aspx?zpid=9503
And how to decipher the NGK codes, i.e. BPR9ES:
https://www.sparkplugs.com/Data/uploads/Charts/NGK_Plug_Chart_1.jpg
Hope this info helps.
Last edited:
BR9EYA are designed to work in the cat 800 engine, They are way less prone to foul when the sled is cold or in richer oil mixture.
I was using them on my 2011 SBA
I was using them on my 2011 SBA
TRS Do you use the BR9EYA in your turbo sleds as well ?
I would be glad to. There are several reasons. Click on those links above and look at all the pics. Notice on the standard ES and EIX plug you can see the porcelain tip of the plug, and on the EYA you can just barely see it. This is considered a shielded plug. Its going to resist fouling and it also going to run at a more consistent temperature.
Now, the tip material. Platinum and iridium are used on spark plugs to increase the life of the spark plug, they do not increase the performance of the plug. Copper is a better conductor then both of those two materials but will wear out much sooner and need replaced.
Does that help ya? Eric
We have about 300 miles on one of the Axys RMK's, and figured I would proactively change out the plugs and try the BR9EYA's. Made it less than 1/4 mile from the parking lot and fouled a plug, never had a problem with fouling before. Made sure everything looked good, and put the BPR9ES's back in on the snow and it ripped all day.
Always game to try something people recommend here, but this one did not work out for us.
Always game to try something people recommend here, but this one did not work out for us.
Yeah that's more coincidental.
I've been running the EYA's since the 900 and Dragon days. Idle better in cold temps. Little more crisp off throttle transition. They are also less prone to fouling with my heavy doses of oil.
This is where Iridiums didn't like to go for me.
I've been running the EYA's since the 900 and Dragon days. Idle better in cold temps. Little more crisp off throttle transition. They are also less prone to fouling with my heavy doses of oil.
This is where Iridiums didn't like to go for me.
