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Post by Scooter Elements on Oct 1, 2011 14:15:51 GMT -5
Okie i sell three different spark plugs for the gy6 150cc scooters. One is the regular NGK and then the Iridium and then i sell another one that has two grounds which is a OKO brand. Are their any benefits in using a spark plug with two prongs?? i sell more of the 2 prong ones than any other but wondered if they performed better? Attachments:
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Post by sprocket on Oct 1, 2011 15:59:56 GMT -5
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Post by qwertydude on Oct 1, 2011 22:07:43 GMT -5
Not really any benefit from two prongs, your spark plug only sends out one spark at a time. The only reason the splitfire spark plugs had any benefit was because the notch exposed more area to the initial flame current, thus advancing the engine's timing just a tad which tended to make a more reliable combustion. Those two pronged plugs don't derive their benefit from having two prongs but from being side gapped. I'd still pick iridium since the sky high rpms that scooters are always at and the 360 degree firing of them tend to really wear the plugs out quick. 10,000 miles on a scooter seem to have the effect of 50,000 miles on a car, at least when spark plugs are concerned.
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Post by skuttadawg on Oct 1, 2011 22:41:38 GMT -5
I think Spitfire etc have better performance if you use a wire designed for them instead if single prong . NGK has been the best small engine sparkplug so I stick with them . The NGK Iridium performed great in my CR125 .30 over . I thought since electrode was smaller it would foul out easy but it did not and improved WOT conditions since I raced amateur class locally . My cars loved Bosch Platinums as all sparkplugs are not the same nor have same results .
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Post by leroysunl on Oct 1, 2011 23:42:16 GMT -5
Spark plug? My original Chinese plugs lasted a few hundred miles. Went to my local NAPA store and they sold me an Autolite equivalent which has 4000 miles now. I figure it either sparks or doesn't. LF
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Post by sprocket on Oct 2, 2011 12:43:47 GMT -5
I'm running a side gapped iridium...as a test...but I'm coupling it with a high output NCY ignition coil...
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Post by TERRA NUVO on Oct 2, 2011 20:35:25 GMT -5
sprocket
did you test the out put of that coil against others, some have not been any different then the black.
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Post by sprocket on Oct 3, 2011 11:19:12 GMT -5
According to NCY their coils have more windings and a higher spark voltage. I don't have a multimeter that will handle 26,000++ volts ;-) But it also depends on the CDI capacitors and the stator input voltage. Most stock CDIs put about around 80-100 volts, but I'm using a Linhai performance CDI and an input voltage of ~ 96 ACV which puts out about ~165 volts to the coil... The stock ignition coils produce between 16,000 and 18,000 volts from what I have read. But like everything on these scooters there are good parts and crap... The NCY coils however will jump a noticeably larger air gap than a stock coil or the orange chinese 'performance' coils which are pretty much identical to the stock coils in most cases... www.scooterworks.com/NCY-GY6-High-tension-Coil-P5839.aspx
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Post by Scooter Elements on Oct 3, 2011 11:29:38 GMT -5
According to NCY their coils have more windings and a higher spark voltage. I don't have a multimeter that will handle 26,000++ volts ;-) But it also depends on the CDI capacitors and the stator input voltage. Most stock CDIs put about around 80-100 volts, but I'm using a Linhai performance CDI and an input voltage of ~ 96 ACV which puts out about ~165 volts to the coil... The stock ignition coils produce between 16,000 and 18,000 volts from what I have read. But like everything on these scooters there are good parts and crap... The NCY coils however will jump a noticeably larger air gap than a stock coil or the orange chinese 'performance' coils which are pretty much identical to the stock coils in most cases... www.scooterworks.com/NCY-GY6-High-tension-Coil-P5839.aspxI have a ignition coil here brand is OML that says on the package it is 45,000 volts and 25 OHMs it is 10mm double silicone.
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Post by sprocket on Oct 3, 2011 11:39:08 GMT -5
>>OML that says on the package it is 45,000 volts
That's a hot one!!! What input voltage though?
They also make a OML 40ohm coil
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Post by Scooter Elements on Oct 3, 2011 12:02:20 GMT -5
>>OML that says on the package it is 45,000 volts That's a hot one!!! What input voltage though? They also make a OML 40ohm coil yea i have the 40 Ohm ones too.the yellow one is 25 ohms and the blue and red ones are 40 ohms. not sure what the input voltage is. I remember the first one i sold the customer came back and was like WOW that thing gave new life to the scooter. so of course i had to install one on my scooter and i love it.
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Post by sprocket on Oct 3, 2011 15:09:12 GMT -5
Ya, I will have to try one...you can get a situation with too much spark and you go through plugs like candy, burns the bent electrode right off them...or cause pre-ignition...
Might be wise to go with a cooler plug...I don't know...
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Post by TERRA NUVO on Oct 3, 2011 15:23:53 GMT -5
When i put platinum plugs in my car it ran a little better but burned gas like a hog,
anyone know why that is.
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Post by sprocket on Oct 3, 2011 15:28:33 GMT -5
Likely the O2 sensor... for whatever reason it is changing the injectors... you may need to have a diagnostic done and reprogram the ECU for the new plugs...
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