Which spark plug do you run?

[450RSandStar]

I got to thinking since I'm due for a tune-up, i.e. valve adjustment, still needing my carbs air/fuel to be adjusted, but figured while im there might aswell replace the spark plug. Anyone know of a good quality spark plug that I should run? I beleive I have an O.E. plug still. Im sure my best bet will be to go with platinum, but which brand? I also dont believe in all those bs plugs with multiple grounds. Anyways I'd appreciate any input that I know you all are good for.

[PORTED SHEE]

go with a ngk plug ,best plugs right there and very common

just go to ngkplugfinder.com i think and type in the bike u have and it will tell u what plug to run and gap

[SHOWTIME]

ngk b9es

[audioworks04]

NGK for sure i run the stock irridium IFR8H11 in my crf450 motor should be the same plug as you need, but look out they are high dollar.

[Autophysn]

stock, but have been thinking about running something different to see if it would make any changes, Any 250r guys ever play around with different plugs?


BTW, those 450r take Irridium plygs as a stock replacement? WOW!

[SandPsycho]

Originally Posted by Autophysn

Any 250r guys ever play around with different plugs

Can you rephrase that..................lol!!!

[450RSandStar]

Originally Posted by audioworks04

NGK for sure i run the stock irridium IFR8H11 in my crf450 motor should be the same plug as you need, but look out they are high dollar.

Yeah I got my plug shipped from Los Angeles through my local Napa auto parts and I opted for the IFR8H11 over the IFR7L11 my owners manual said came stock... My owners manual states that the IFR8H11 is for high speed, they were the same price so I went for the better of the 2.

And yes, Autophysn, stock the Honda 450R comes with a Laser Irridium plug that took a whoppin $16 bucks outta my pocket for 1! Napa even said it was the most expensive plug they have ever seen!

[siderbox]

Originally Posted by Autophysn

stock, but have been thinking about running something different to see if it would make any changes, Any 250r guys ever play around with different plugs?


BTW, those 450r take Irridium plygs as a stock replacement? WOW!

+howevermany on the NGKS. Run them in everything I got. Except the powerstroke. haha

WOW is right. Iridiums are what I run in my 954RR. It's fun buying them 4 at a time.

[glamy]

Originally Posted by Autophysn

stock, but have been thinking about running something different to see if it would make any changes, Any 250r guys ever play around with different plugs?


BTW, those 450r take Irridium plygs as a stock replacement? WOW!

Years ago i tried bosh double platinum didn`t notice any change so stuck with ngk b8es , b9es is cooler more prone to fouling for 250r. 16 bucks is absurd!

[audioworks04]

Yeah it sucks shelling out the cash for it but they should /sat almost forever.