ngk iridium's

adrian101

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I have the stranded spark plug that came with the engine still, When i get my bike back on the road i want to pick up a new spark plug.. I've read a few topics on here about what spark plugs people use. Lot of people mention the NGK iridium plug as one of the best spark plugs...

I've been told by a lot of people that the iridium plugs burn/spark to hot for the stranded china two stroke engine, "will destroy the piston". Is this true or BS?

If it isn't true then what NGK iridium plug do you use because i want one.. lol:D:D:D
 
all I can say is I use iridium in all my scooters
but I happened to get a normal plug today and found mine needed to be gapped to 50, like the stock china plug to run correctly

now if I dropped the cash on an iridium and tried to open the gap that large who knows if I could do it cleanly without chipping it or something
I wanst expecting to gap it at all
 
iridium is a platinide, much like rhodium and , wow! platinum!

this means it has a melting temperature well in excess of 1500 degrees celcius.

its hard too boot. makes nice jewellery and laboratory equipment :)

they use it in specific style spark plugs for a reason. length of service intervals.

they dont wear out (as fast as standard plugs)

youll find them in the REAR CYLINDER BANK ONLY on a car such as a mitsubishi magna V6. why? cause they designed the silly thing so you have to remove the entire inlet manifold to change the plugs! this becomes a major service, and as such, is around about the 150,000 to 250,000 km mark. the front row of cylinders,on the other hand, are easily reached, so use standard plugs.

a standard plug should be changed every 10,000 or so.

so what does this mean?

well, considering platinum sells for twice the price of gold, and that iridium is even more expensive, the plugs are very expensive.

they make absolutely no difference to spark temperatures.
again?

THEY MAKE NO DIFFERENCE TO SPARK TEMPERATURE.

this is a function of coil strength, not plug type. more current/voltage makes a hotter spark. not an expensive spark plug.

combustion temperature is a combination of compression ratio, fuel type, and fuel mixture. the spark has no bearing on combustion temperatures.

other than to get it to burn in the first place. that bit helps.

the average lifetime of a HT seems to be less than the average lifetime of a standard plug....

so why spend all your dollars on a silly plug?

oh yeah. iridium is hard to re-gap. you arent meant to.

(yeah yeah, they arent that expensive but you get the idea now, i hope...)
 
I have lots of miles logged on my 2009 BikeBerry 66cc and I'm still using the original plug. I haven't even looked at it for over a year. There's a spare plug of the same type in my carry along tool bag. I'm waiting for the expected plug failure I've been warned about. Personally I don't think it's worth the money to put any kind of special plug in these cheap little motors. They're low compression and rich on oil. Plugs are not going to wear out often.
 
But they last 120,000 Miles.
I could take this one out and put in 5 other china bikes XD
 
I will only use Iridium, it's that good. Not hard to gap either.
 
I'm a big fan of NGK Iridium, I'll put them in anything. It's good to have 2 or 3 different ones for the seasons, but I found myself cleaning them much more often than other plugs. Such is the price of performance.
 
yes, needle-nosed pliars or a jewelers screwdriver to pry the ground electrode outward.
And i just tap it on a hard surface to close the gap any.
 
exactly what the manuals tell you not to do (to any plug) but um...im also guilty.... :geek:


but, as for this one...
I'm a big fan of NGK Iridium, I'll put them in anything. It's good to have 2 or 3 different ones for the seasons, but I found myself cleaning them much more often than other plugs. Such is the price of performance.


if you are cleaning the plug...then its too cold a heat, go down a number or two.... :geek:


or someone hasnt jetted for "performance"....:devilish:
 
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