KymcoForum.com
Scooters - 125 to 300 => Agility 125 => Topic started by: Jim Moore on February 03, 2012, 12:03:31 PM
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Folks,
My owners manual recommends a Champion P-RZ9HC. The PO said he used NGKs. I can't find a good cross reference on the net. What plugs do you guys prefer?
Also, what octane gas? The owners manual said the compression ratio was "13." It didn't say 13 what. I can't believe it's that high but what do I know. Do y'all use premium in these things, or can I get away with cheaper gas?
Quick note, I tried a few searches and really didn't find anything that nailed down these questions.
Thanks,
Jim Moore
Jax, FL
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The 125cc GY6 engine (google GY6+125, you'll get all the info you'll ever need, it's the most common
125cc scooter engine for years) should be around 9,2:1 so any fuel should work.
As far as the spark plug goes, I have no idea re: model number, but I also used NGK.
I've changed it only once, at 7k miles, and the OEM plug was still working fine.
The bike currently has almost double that mileage (13,5k) and the NGK is still
working fine.
That engine will really take anything you throw at it.
Same goes for oil, you can go really cheap with it (15W40 mineral stuff is fine).
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I really like the ngk iridium plugs , small single cylinder engines can use all the help they can get . Also non-ethanol gas will help very much , check your area for availability here: http://pure-gas.org/ (http://pure-gas.org/) . Good luck .
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Premium ONLY for my engines, and the NGK web site has the cross Reff. chart you need. I believe you can just ask here for the ngk #'s also
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Folks,
My owners manual recommends a Champion P-RZ9HC. The PO said he used NGKs. I can't find a good cross reference on the net. What plugs do you guys prefer?
Also, what octane gas? The owners manual said the compression ratio was "13." It didn't say 13 what. I can't believe it's that high but what do I know. Do y'all use premium in these things, or can I get away with cheaper gas?
Quick note, I tried a few searches and really didn't find anything that nailed down these questions.
Thanks,
Jim Moore
Jax, FL
You can use NGK CR7HS. The brand is irrelevant, just buy any good spark plag for that scoot every 10.000 kms. The old one will still look good, but why worry about that.
Use 10W-40 oil (not 15W-40), semi-synthetic. Personally I use synthetic because I can get it cheaply but it is overkill. Change every 2-3.000 kms.
Use any fuel with 95 octane or more. If you are in USA skip that high percentage ethanol crap you have there and use gasoline with up to 5 % ethanol.
Lube everything with grease and WD40 every two months, change air filter every 10.000 kms, check tires every month and you will be good to go for thousands of kilometers.
This type of scoot/engine has been transporting people in Asia and Africa for decades without NASA maintenance crew behind them.
Also I could not wait long enough for this type of thread ;D :D to say that on this forum we have a hype going on about Sea Foam and Iridium NGK. Both are marketing fads. :)
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So sorry , I had forgotten that my opinions and personal experiences were irrelevant and misguided , please forgive me and ignore all of my posts . Thank you Axy for once again pointing out my foolishness and stupidity .
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I apologize to everybody affected for giving detailed, scientific and number/fact-based advice as a response to posted question, especially if it contradicts somebody's wrong preconceptions.
Life is usually a learning process, for some. For others, it is not.
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plural pre·con·cep·tions [count] : an idea or opinion that someone has before learning about or experiencing something directly
▪ I came to the lecture without any preconceptions. — often + about or of ▪ He's changing people's preconceptions about/of modern art.
I have actually tried and use the products I recommended .
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That's why even doctors use placebo pills.
People tend to believe in anything they set their mind to.
Some even believe in invisible superior beings. ::)
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Holy Sh*t! FLAME ONNNNNNNNNNNNNNNN! Way to go Axy...
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The guy just wants a spark plug #
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The guy just wants a spark plug #
The guy was given spark plug # in this post.
http://www.kymcoforum.com/index.php?topic=5713.msg55824#msg55824 (http://www.kymcoforum.com/index.php?topic=5713.msg55824#msg55824)
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Thanks for the help, guys! Hey, did y'all know that a 12 pack of Bud Lite will fit under the seat?! It's like a goddam miracle!
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With a bag of ice. I have two drain holes for this. Back to the plugs. Iridium plugs are not an efficient choice for 2t engines as they are too expensive to replace as often as we should. In a 4t it is a different story. They do resist oil/carbon fouling due to the focused spark from a smaller tip. An OLD funny car trick was to file the center electrode to a 45* angle to focus the spark source vs. allowing it to jump all over a flat surface. Same for rotors, and distributer caps. A fine point will burn more quickly however. That is the reason for the exotic metals used.
Either that or they are lying about it all to get us to buy all the extra iridium some new guy ordered at the plant. IDK... I don't want to offend but ihttp://www.seafoamsales.com/why-sea-foam-motor-treatment-works.html
http://www.yotatech.com/f105/sea-foam-do-you-want-truth-160613/ (http://www.yotatech.com/f105/sea-foam-do-you-want-truth-160613/)
http://www.densoiridium.com/faq.php (http://www.densoiridium.com/faq.php)
No such thing as a cure all but some thing work better than others. I laugh at STP/Dry gas/ect. but Recommend sea foam to counter all the nasties in our fuel.
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Don't come after me Axy... I'll throw darts at your cats picture.
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I contacted a NGK technical representaive before I installed the iridium plug in my stock people 50 2t to see if would be ok . I was told that the iridium plug was originally developed for 2t racing applications and that they would provide superior performance and resist fouling in 2t engines . I have over 13,000 km on my NGK iridium plug currently , it is still burying the speedo at 80+kph and if it ever wears out I will replace it with another one . IDK about modified engine applications . Good luck .
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I used one for awhile, but piston pieces but an end to expensive spark plugs for me. All new 2t outboard engines use them. They help meet emission laws for the U.S. market. And who can afford marine mechanics to change fouled plugs? I am a marine mechanic by day so I do KNOW they work. They outlast standard plugs almost 3:1. Same with all else I post. There are lots of cheap ass products that do little or nothing, and they distract from the few good products that do perform. Mass Iridium to all!
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Lube everything with grease and WD40 every two months, change air filter every 10.000 kms, check tires every month and you will be good to go for thousands of kilometers.
Where so you put grease & WD40? I'd do it if I knew where to put the grease.
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Lube everything with grease and WD40 every two months, change air filter every 10.000 kms, check tires every month and you will be good to go for thousands of kilometers.
Where so you put grease & WD40? I'd do it if I knew where to put the grease.
Grease: Read the manual, there are several pivot points to be greased on every scooter, including rear swing arm and steering column. I also used it to lube kick start lever on A125, side and center stand, locking mechanism of the seat and a bit in all locks. Also, battery contacts should be greased.
WD40: I use it on all electrical switches because my scoots are in open/rain 365/24. Starting switch, lights etc. I also use it inside line tubes (for example, for A125's rear drum brake) and to lube gas throttle that tends to freeze when it is moist and below -3 - 4 C, especially on Agility. Also on all electrical contacts and spark plug cap.
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AXY, tnx this will keep me busy one spring day.
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AXY, tnx this will keep me busy one spring day.
Don't forget that WD40 is great grease solvent.
So, if you overdo something with grease, you can spray some on rag, put that moist part of the rag on your finger and wipe the excess off.
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My Agility came with a champion plug and I replaced it with an NGK expecting better performance but got none. As far as it being better or lasting longer I don't know but I will continue to use them because it's only a few dollars more every few years and there may be benefits I have'nt realized yet.I really don't think the oil you use matters as long as you change it every 1500-2000 kilometers.I haven't had any oil or plug related issues but if I do you guys will be the first to know.I get a lot of helpful info from you guys and respect ALL of your opinions. Thank you all and I will continue to look at you guys for info and inspiration...Dale
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As long as (2) plugs are in the same heat range, and gapped the same there will be very little if any difference in performance. The benefit is in the long term or working life time of the plug. Be MOST careful of BOOTLEG or COPY plugs. If you are buying on Ebay or overseas bootleg plugs are quite often sold. Champion is the MOST copied plug. Just keep your dealings w/ sources you can trust.