My 2009 Aprilia RS125 2 stroke runs way better with Iridium plugs. In fact it wont even rev out properly with the regular plugs the factory calls for.
the improvement is not so odd, the petrol vapour is never evenly distibuted in the cylinder and iridium gives a more all round ignition wave propogation
you can get a similar effect in side valve mower engines by indexing the plug to the intake valve and shaping the electrodes
@21crazz they will give you a small increas in power but NGK ware proven to be more consinstant with the power levels while denso would go up and down
My 2009 Aprilia RS125 2 stroke runs way better with Iridium plugs. In fact it wont even rev out properly with the regular plugs the factory calls for.
666smokeskull 1 month ago
you are sick! where's your anti seize for the spark plug threads?
paolo9274 2 months ago
@paolo9274 The factory coating on the threads is gall proof and requires no other thread compounds.
666smokeskull 1 month ago
This has been flagged as spam show
the improvement is not so odd, the petrol vapour is never evenly distibuted in the cylinder and iridium gives a more all round ignition wave propogation
you can get a similar effect in side valve mower engines by indexing the plug to the intake valve and shaping the electrodes
mueller_rangesztripodzcom links compendium oddmentszytml#spark electrodes
z=dot, space = /, y = h
osip7315 5 months ago
Comment removed
osip7315 5 months ago
Comment removed
osip7315 5 months ago
Got a set of NGK Iridium IX plugs on order for my 06 R1, hoping to see a little improvement in performance.
EagleTalons1 7 months ago
ThanX for the info, Better try Iridium for my car
hom2fu 8 months ago
NGK'S ALL THE WAY!!!!
djreact18 9 months ago
I was always told that Iridium takes more voltage to run. So if that's the case then copper should be better.
Justy330 9 months ago
Thanks for taking the time to show this worthwhile experiment. You've helped a lot of people.
draygnol 10 months ago
the best video ever
MegaSinar 1 year ago
Try out the Denso Iridium plug I hear there better
21crazz 1 year ago
@21crazz they will give you a small increas in power but NGK ware proven to be more consinstant with the power levels while denso would go up and down
nawzy202 9 months ago
What is the part # for the NGK Iridium plugs ? and what is the gap out of the box ?
BobberBadAss 1 year ago
love your demos! Its simply the facts. Thank you.
troyapple 1 year ago
Appreciate that info..Was wondering if you ever tested the Denso Iridium power plugs with the 0.4mm electrode tips?
GTnumber1 2 years ago
Thanks for the information! NGK Rocks!
orreo5859 2 years ago