I just found 4 Brand New NGK CR9EIX Iridium spark plugs in a drawer while cleaning up the room. Can I use these in my MC28?
_________________
John 3:7

as a matter of interest what plugs are you guys running in your NSR

I run BR9ECM on the 21

BR9ECM (and R5300A-95)

Personally, I've never seen anything to justify the cost of iridium plugs. BR9ECM work perfectly and last forever, so long as you don't flood them. Even so, I can categorically say, in 25 years, I've never had [or seen] one fail. I'm sure they have, for someone somewhere, but it's certainly not something forums are filled with, and I believe it's pretty much the standard plug for all the 90s 2-stroke race reps.

Edit: As above, all 90s NSR/RGV/RS/TZR

https://www.sparkplug-crossreference.com/convert/NGK_PN/BR9ECM
_________________
Andy.
NSR-WORLD.COM

Please keep all responses to Forum posts on the Forum so that others may benefit.

Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.

Check us out on Facebook! Please "like" our page!

where do ye buy the BR9ECM from? Im just worried that running the iridium plugs will make the cylinder run hotter and possibly cause detonation. especially with all the cylinder problems i have been having.

I went to a local main dealer who also turned out to be cheapest.

we dont have any local main dealers unfortunately.

prelude2.2 wrote:we dont have any local main dealers unfortunately.

Order online. Most places will post to you .

prelude2.2 wrote:where do ye buy the BR9ECM from? Im just worried that running the iridium plugs will make the cylinder run hotter and possibly cause detonation. especially with all the cylinder problems i have been having.

£6.61 which is about €3 these days!
https://www.sportsbikeshop.co.uk/motorcycle_parts/content_prod/16899

Andy wrote:BR9ECM (and R5300A-95)

Personally, I've never seen anything to justify the cost of iridium plugs. BR9ECM work perfectly and last forever, so long as you don't flood them. Even so, I can categorically say, in 25 years, I've never had [or seen] one fail. I'm sure they have, for someone somewhere, but it's certainly not something forums are filled with, and I believe it's pretty much the standard plug for all the 90s 2-stroke race reps.

Edit: As above, all 90s NSR/RGV/RS/TZR

https://www.sparkplug-crossreference.com/convert/NGK_PN/BR9ECM

Exactly this^^^^^^^, nothing wrong with the BR9CEM, and easy enough to get hold of, although I ran the R5300A in mine for several years with no problems, the only downfall with these is they are about £45 a pop, if you can find them, I am lucky to have a good stash, as these are the recommended plug for the NF5, so I have been accumulating them over the years.
_________________
Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto

Here in US you can get them at most auto parts stores. I use a shorty plug on my front cylinder. I found a place over in England called the green spark plug. They sell just about any kind of plug you could imagine. Not cheap, but when you need a really odd one, they can get it.

prelude2.2 wrote:we dont have any local main dealers unfortunately.

Any motocross shop nearby?,they will have some.

It’s no wonder they’re hard to get hold of and in short supply uncle Alberts got them all in a draw🤣🤣

Johnnymac wrote:It’s no wonder they’re hard to get hold of and in short supply uncle Alberts got them all in a draw🤣🤣

Surely we don't need to know what he keeps in his drawer's!!

Johnnymac wrote:It’s no wonder they’re hard to get hold of and in short supply uncle Alberts got them all in a draw🤣🤣

Alright Delboy, calm down, this time next year i'll be a millionair when I sells em all.
_________________
Proud Father of , 05 ktm 400exc supermoto 2018 honda crf rx supermoto