Iridium spark plugs?

[jason x]

Does anyone know of a place to get iridium or other high performance spark plugs in scooter sizes?
Has anyone heard about their performance in a scooter?
Thanks
Jason X

[Brockster]

Hi Jason, What is the maintenance interval on a Helix, plug-wise? By the way, there's a nice white Helix down at Middletown Cycle with the radio and low mileage for $2800 - if you just need another Helix. Don't change the plug - just get another bike!

Google is your friend.

Here's various comment from other motorcycle forums:::::::::::::::::::::::::;

From Corndog67 on the ducati.ms forum:
"...over the past 36 bikes or so, I've found that the cheapass, $1.99 Champion or NGK equivalents, and I'm also not sure if there is one for the Ducs, have lasted as long if not longer than the iridium Q236, fancy split fire, Platinum whatthehells that cost up to $15.00 each. In fact, the little tiny electrodes in the expensive plugs fouled easier in my old 2 strokes, but that really doesn't apply here, does it?"

From RKTony on the v-twinforum.com:
"...I changed mine today and when I was at the parts counter at the dealer, I asked my parts guy about plugs and prices. Asked him about the advantages of platinums, v-grooved and others over the stock plugs. He flat out said that the others were basically double the price, and that the stock plugs last longer and out perform themas well. With bins full of the high dollar plugs to sell, its nice to have an honest parts guy tell me to save my money."

From GIl on the Honda Helix Discussion Board:
"U can get the NGK iridium plug in extended high speed driving spec for the helix. I have used it on all my scoots. It helps with cold starts, a tine increase in MPG and smother running engine. The spark plug has to operate at a certain temperature. This temperature of the plug it self will allow the plug to burn off any oil/fuel deposits to stay clean and it wont over heat/burn up/fail.

City driving has less combustion events than extended highway driving.
City driving tends to have less heat to heat up the plug.
A normal(city) plug will be able to keep its temperature hot enough so that its able to burn off oil/fuel deposits, stay clean and not melt off.

Extended highway driving has the most combustion events the engine will ever see. At 7000rpm their are 3500 combustion cycles per minutes. That is quite a lot of heat energy to heat up the plug. So a extended high speed driving plug has to be able to cool down, keep its cool, so that it doesn't burn up and is able to stay clean.

Thats the way i understand it. Just remember that if u have any one of the two, it wont burn up like I stated (i exaggerated a bit). The helix will just run/start much better with the right plug. I have the extended high speed driving plug because i have a 40mile round trip commute to my second job once a week.

Edit: The Honda helix has waste spark ignition system. THe spark plug ignites at the end of the compressive stroke and at the end of the exhaust stroke. At 7000rpm their wold be 7000 spark events per minute.

"Its the NGK Iridium DPR7EIX-9
I got it from ebay as my local auto parts store had to special order it and it was priced 12usd plus tax.
Got it from ebay for 10usd shipped

[phat D]

jason,
put iridium spark plugs in the big ruck. It's A LOT slower now! Stay with what honda recommends. Stay away from the kevlar belt too!

[sidecarjimi]

Dirk
you are the first to not like them you ned to ride the scoot to see the differance put up the big bike
jimi

[phat D]

I'm not really saying i dont like them! When we put the new plugs in we also put that kevlar belt in. So it could be that,thats slowin her down.Ain't no thing ,my brother!