I have heard that some people are running another spark plug in there sleds other then stock..Some say it adds HP..What are they??? I am looking for feedback for these plugs, do they run hotter, void Yamaha warrent, do they foul easier, what about gas mileage , why are they so much better then the stock plugs???????????????
p0wd3rp1l0t
VIP Member
cr10ek ngk plugs r the plugs...cannot answer any other questions
rage man
TY 4 Stroke Junkie
After reading the post about these cr10ek plugs sitting lower and the last thread on the plug getting all carboned up and the possibility of stripping the head when taking the plugs out, forget it! I will stick with the stock plugs thank you! Has anyone tried to remove their plugs yet that have had them in for a few thousand miles?
I've took mine out a few times with no problems.I don't know how someone could strip the head.For the cost it's a no brainer upgrade.
One need not run the CR10EK to see the gains, the CR8EK or 9EK can be used if you find the 10 running too cold.
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The CR10EK plug does not sit into the combustion chamber any further than the stock plugs. The stock plug actually sticks about .004" further into the chamber.
Jason.Benjamin
Veteran
If you don't want to spend as much but still want the boost and a quality plug try the denso version.
http://www.sparkplugs.com/
NGK CR8EK $6.95ea = Denso U24ETR $3.27ea.
NGK CR9EK $6.95ea = Denso U27ETR $2.24ea.
NGK CR10EK $6.95ea = Denso U31ETR $5.78ea.
http://www.sparkplugs.com/
NGK CR8EK $6.95ea = Denso U24ETR $3.27ea.
NGK CR9EK $6.95ea = Denso U27ETR $2.24ea.
NGK CR10EK $6.95ea = Denso U31ETR $5.78ea.
powderpimp1
Expert
Will this also work on my Nytro?
Yes, same motor.powderpimp1 said:Will this also work on my Nytro?

powderpimp1
Expert
sweet!
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