KymcoForum.com

Scooters - 125 to 300 => LIKE 200i => Topic started by: big blue on November 01, 2012, 04:00:01 PM

Title: Spark Plug Question
Post by: big blue on November 01, 2012, 04:00:01 PM
Hi scooter folks, I wanted to know if anyone has an opinion on switching the stock spark plug for a platinum or iridium one. I use NGK platinums in the car because they last longer and work well with cdi ignition. Since plugs in scooters are easy to change and need changing more often, is there a performance difference?
Title: Re: Spark Plug Question
Post by: Lucasan on November 02, 2012, 01:06:33 AM
Very good question. I've been wondering the same thing myself.
Title: Re: Spark Plug Question
Post by: Vivo on November 02, 2012, 02:05:01 AM
Of course you can... and you're are right bigblue on the long life thing... premium metals last longer than your traditional copper...
Title: Re: Spark Plug Question
Post by: TroutBum on November 02, 2012, 04:27:33 AM
You could, but why? Spark plugs are cheap. Personally I would use the original and replace it when necessary. YMMV
Title: Re: Spark Plug Question
Post by: Vivo on November 02, 2012, 05:18:18 AM
You could, but why? Spark plugs are cheap. Personally I would use the original and replace it when necessary. YMMV

Yup, why... I did not... I still use the copper electrode and change it when necessary..  ;)
Title: Re: Spark Plug Question
Post by: Zimmerman on November 02, 2012, 09:40:00 AM
Doesn't iridium result in better Preformance ?
Title: Re: Spark Plug Question
Post by: big blue on November 02, 2012, 03:51:11 PM
That is exactly what I am asking about. I know that the Iridium plugs last longer(good in applications where it is difficult to change) but do they give improved performance? Would one expect better mileage, speed, smoothness? ???
Title: Re: Spark Plug Question
Post by: juice on November 02, 2012, 04:50:21 PM
iridium plugs do perform better , but on a well maintained properly functioning motor you may not be able to detect any noticable difference . It will start easier and the plug will last much longer . I have been using them in all my vehicles and think the small extra expense is more than worth it  , especially in a single cylinder application . Good luck .
Title: Re: Spark Plug Question
Post by: MotoRandy123 on November 02, 2012, 11:40:22 PM
That's the first thing I did to my scoot. The fine wire arc's over sooner
so advances the timing 1/2 degree or so. It's only a little but adds a tiny
bit of power. The bike runs smoother and gets slightly better mileage too.
They don't wear out hardly at all so just pop it in and forget about it for 10
years or so...
Title: Re: Spark Plug Question
Post by: Vivo on November 03, 2012, 01:08:52 AM
Everybody's right... it's more on the long life thing...  ;) But of course, manufacturers have to focus on "POWER" or "PERFORMANCE" to get the consumers attention..
Title: Re: Spark Plug Question
Post by: big blue on November 03, 2012, 04:39:18 PM
Many thanks for the opinions. I will probably switch to the iridium at next service and give it a try...Len
Title: Re: Spark Plug Question
Post by: de-dee on November 08, 2012, 06:01:38 AM
   Do check your spark plug once a year so it will not freeze to your alum. block & if you put the scoot up for the winter a shot of oil in the cylander is good,.
       300i dt. givi top box,  givi side boxes,  admore lights,. hid head lights, home made rack for the givi boxes,. battery lead for charger, good for jump start too,.
                                                          the golden hawk scooter
Title: Re: Spark Plug Question
Post by: scooterchu on November 11, 2012, 02:28:20 AM
   Do check your spark plug once a year so it will not freeze to your alum. block & if you put the scoot up for the winter a shot of oil in the cylander is good,.
       300i dt. givi top box,  givi side boxes,  admore lights,. hid head lights, home made rack for the givi boxes,. battery lead for charger, good for jump start too,.
                                                          the golden hawk scooter

I was under the impression that anti-seize is made exactly for that. Also I believe denso plugs now come with an antiseize coating on the threads.
Title: Re: Spark Plug Question
Post by: Vivo on November 12, 2012, 01:39:52 AM
I was under the impression that anti-seize is made exactly for that. Also I believe denso plugs now come with an antiseize coating on the threads.

Yup....
Title: Re: Spark Plug Question
Post by: JOB on February 20, 2013, 12:33:35 AM
I Just bought an Autolite plug  (at Carquest) that is a direct replacement for the CR7HIX NGK Iridium plug and it cost me a whole $2.21 with tax. That's less than 10% of what the NGK goes for. Just thought I would share the news. JOB
Title: Re: Spark Plug Question
Post by: JOB on February 20, 2013, 12:34:59 AM
Sorry the number for the Autolite plug is #4194. JOB
Title: Re: Spark Plug Question
Post by: CROSSBOLT on February 28, 2013, 09:15:50 PM
Don't forget a spot of anti-seize on the plug threads early in the life of the scoot to prevent the aluminum threads following the plug when you remove it. Learned that from an old-timer airplane mechanic.

Karl
Title: Re: Spark Plug Question
Post by: Vivo on March 01, 2013, 01:10:06 AM
Don't forget a spot of anti-seize on the plug threads early in the life of the scoot to prevent the aluminum threads following the plug when you remove it. Learned that from an old-timer airplane mechanic.

Karl

Was gonna say this also.... ;)
Title: Re: Spark Plug Question
Post by: CROSSBOLT on March 01, 2013, 08:04:43 PM
Vivo, I am trying to think of some sort of cute, really smart-a$$ reply, but my old brain cells and synapses are miss firing.......

Karl
Title: Re: Spark Plug Question
Post by: Vivo on March 02, 2013, 01:39:26 AM
Vivo, I am trying to think of some sort of cute, really smart-a$$ reply, but my old brain cells and synapses are miss firing.......

Karl

Karl, the brain is the only thing that.... the more you use... the sharper it gets.... ;) ;) ;)
Title: Re: Spark Plug Question
Post by: Stig / Major Tom on April 09, 2013, 02:06:34 AM
You guys are a hoot, and I don't even have a scooter yet! I love to tinker - so will be looking under the bonnet of this thing when I get it home from the showroom. Also know enough to know I don't know squatt about vehicles, so I'm not too dangerous....Spend a lot of time looking at my Scion engines, then wipe them off and leave them be.