KymcoForum.com
Scooters - 50cc => Agility 50 => Topic started by: omfgdotcodotuk on September 13, 2010, 08:21:54 PM
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Yeah today was spark plug change time :) .I work for probably the United Kingdoms biggest motorcycle and car part distribution company so as you might guess i get a great big whopping discount on anything i buy,so i got me a CR7HIX iridium plug for my little beastie £5.00.I can say the scoot started and idled perfect before but i needed to have that plug as i always use them in my bikes (2 stroke before the a50 came along) i was expecting a real low market chinese plug to pop out but lone behold a mint champion PRZ9HC checked this plug and all seems well as it should be.I replaced the little black and gold plug with the iridium and poped the champion under my seat as a spare.Now the engine seems completely different,easier/quicker starting even smoother tick over and a lil more responsive so if your thinking about investing your hard earned cash on an uprated plug for your 4 stroke in my opinion i dont think you can go wrong with the ngk iridium range and the word IRIDIUM just rolls off the tongue ::) lol.tc omfgdotcodotuk ps more mods to come very shortly keep yall posted as usual ;)
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..MASS IRIDIUM!!...
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Glad to see everyone jumping on the iridium bandwagon.
I felt like an iridiot being the only one!
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Oooh, what is this "Iridium"? Is this like a step up from Platinum or something? Or a brand name? Must learn the meaning of this...
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Yes, iridium is supposed to be superior to platinum because it has a much higher melting point (2450 degrees Celsius) and is 8 times stronger.
The main benefit of the iridium plug is the long life and more efficient spark. Something to do with the much smaller center electrode having less 'spark jump'.
Of course, this is just what I've read.
Some claim there will be a performance boost for the engine (and even fuel economy), but I've found that the only real difference seems to be ease of starting.
In addition to NGK, Denso makes iridium plugs - the IUF22 is the one for the agility 50.
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Ease of starting would be good enough reason to buy one.
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It was for me!
Especially with the cold weather approaching.
I paid $8.49 for the Denso, so it wasn't a major investment.
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Will be interesting to see what I have to pay here.
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I can and will stand by the fact (on my a50 scoot) that it is a little whats the word im looking for????? ermmmm snappyier ? is this a word? lol seriously it is what it is buy one and love it SERIOUSLY :)
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..CR8HIX for the NGK iridium if you ride WOT for long runs..
..CR7HIX for the NGK iridium if you generally run stop and start...
..i guess it might be a little peppier...but i just chopped one, and it shows me to be lean at 85 degrees...
..dang..i just upjetted a size the other day with the regular NGK C8HSA...
:-\
..time to pop open th carb and get out the drills...
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..okay..i hate to be a buzzkill...
..i did 6 runs, with varying conditions...comparing the difference between plugs......
...my scoot performs better with the NGK C8HSA...
:o
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Did you notice any difference in starting between the plugs.
That's the one thing that seems to have really changed for me.
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..from a cold start..yeah...but after warmed up..not much difference...
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Sounds about right.
But as I've said before, the cold start benefit is enough for me to give the iridium plug a thumbs up.
And I guess you have the longevity factor as well.
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..yeah, if it works for you, hell yeah!!!
..every scoot has it own personality...
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lol, make up my mind. I'm trying to add it to my shopping list here, but you all confusing me and changing the #'s. :D
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That's what we're here for, confusion.
I think I'm the only one running the Denso - everyone else seems to be going with the NGK iridium.
Whichever is cheapest would be my advice.
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but you all confusing me and changing the #'s.
..i run a colder plug (the NGK c8hsa) than oem (NGK c7hsa)..
..it burns "cooler", which is beneficial on long runs, which is my typical riding habits...
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Wordslinger , just a thought , but from what I have been told if the iridium plug has a weakness it is that the fine wire electrodes are easily damaged . I've even been told you are not supposed to gap them for that reason . With all the chops and such could you have possibly damaged it ?
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..no, i never touched the electrode of th plug...
..chops don't damage the plug at all...
..and i only did one chop...at WOT...
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Okay, thanks...I added the oem one to the list. I reckon that will do...for now.
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You do want at least one back up .just in case!
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That's a good idea. I'm gonna have to check and see what's in ti now. Might already have a good one and just don't know it.
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Well I was also told that the iridium was originally developed for 2-stroke racing applications . I got 2500 km on mine in the people 50 with no fouling , and my car has 55,000 mi. on them with not a miss . Im sticking with em .
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I never seen an improvment on any of my stock(lightly modded) dirt bikes,but the big bore kit it did make a difference, The question is did it make it better or help mask a problem i was haveing? There was no doubt it performed better but in the end I was loosing a main crank seal (I think) And it did start alot easier. I'm still not sure :-\
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my style of riding the scoot is mainly full on or f**k all so would i benifit going to cr8hix rather than my cr7hix what sits in there now i do tend to run long rides rather than start stop all the time and as said usually at full tilt :)
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..this is an older post by "scootergrisen"...
if the sparkplug is to cold i will get black and in time the spark will be harder to jump.
If the sparkplug is to hot the fuel/air mixture can self ignite before the spark plug makes a spark and this can my time melt a hole in the piston i think.
Is the sparkplug thread is to long it can hit the top of the piston.
If the sparkplug gab is to big the spark might not jump.
If its to small a gab the spark might to to weak.
I pretty sure the right sparkplug for your scooter is NGK CR7HSA wich is called a standard sparkplug.
If you want to exchange the standard NGK CR7HSA plug with a plug with iridium you can look for NGK CR7HIX or Denso IUF22.
I wanted to use a Denso IUF22 in my Kymco Super 8 (50cc) but i could not find any dealer in my area that could get it.
If you drive short trips in the city and low revs most of the time instead of using a CR7HSA you can use a CR6HSA. This i called a HOT sparkplug and will burn off the black carbon build up more easyly.
If you drive fast and long trips and high revs you can use a CR8HSA instead. This is called a COLD sparkplug because it trafers heat away from the plug faster.
You can have a look at the pictures here and maby use google translate to the right if you want to read the text : http://scootergrisen.dk/scooterhjemmeside/tandror.php (http://scootergrisen.dk/scooterhjemmeside/tandror.php)
The answer to your question... yes it will have a performance effect.
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darnnnnnnnn.Thats me plug buying yet again cr8hix is the way to go me thinks :)
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..my daughter's eclipse..
..i put NGK Iridiums in it...
;)
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So did they make a substantial difference in the performance of the car?
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...well, it had iridiums before i changed them...
..but they were old...
..the mitsi will scream!!...
..she's a very good 17 yr old driver tho..
..takes after her old man, i reckon...
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At least we know she'll respect those riding on 2 wheels while driving.
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..yup!..and she's been "driving" since she was 14...
..nearly 18 now, with only one bump-up...
..i ain't scared to ride with her!!..lol..
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lmao slinger ;D
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Sadly, Wal-mart only had Champion, Autolite, and Bosch, and not many of those either. :(
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...AutoZone...
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...AutoZone...
Yes, I know...a neighbor stopped by and asked did I want to ride to the new Wal-mart so I thought I'd try. Did find some Sea-foam and some bearing grease, though. :)
I gotta have a ride to fix my ride! :(
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..don't we all??!!
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I order my NGK iridium plugs through advance auto , they arrive the next day . About $8.50 .
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...i got mine thru advance as well...
..10 bucks here...
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Thanks, juice. After I get the scoot running I'll call them and ride over there the next day. Not a bad price, either.