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  Topic Review (Newest First)
05-14-2014 06:19 PM
cyclerama
Quote:
Originally Posted by Dark Angel View Post
No problem.

12,000KM is a ridiculously short interval for iridium plugs imho. For regular plugs, fine, for iridium, no. My old GT550 used regular plugs and only needed refreshing at about 20,000KM intervals IF I'd been giving it a hard time ... which I usually did but even then it didn't make much difference if any (phantom butt-dyno effect). The plugs always looked fine and the gaps would check just fine as well. The also only cost about $3.50AUD each so it was no big thing.

I wouldn't be surprised if the change interval was set with regular plugs and then iridium was substituted to help pass emissions testing.
I agree with the substitution idea.
10-18-2013 01:40 PM
D.T. I changed the platinum spark plugs (AC) on my truck a few weeks ago and they had a blob of material on the tip of the ground bend and 3 of the 6 were gone. This made the gap .075" instead of .060" so I'm not so sure where it went and the quality of the plugs.

I put iridiums in instead.
10-17-2013 11:39 PM
Sagebrush The Vee I picked up was all original I found out, looked like I was the first one to lift the tank at 26K.

Well over 28K on the plugs now and it still runs good. I'll change them during a valve check... also long over due...
10-17-2013 09:51 PM
andreas Using the E3 spark plugs I bought at the race track
10-17-2013 09:35 PM
greywolf I will say car plugs fire much less often. That being said, I expect Iridiums to last 50,000 miles easily on a V-Strom.
10-17-2013 09:34 PM
nuke Not really familiar with how iridiums look when approaching end of life. The ground strap electrode had a fair bit of pitting at 25,000km. Bike started as when new. Not sure whether this photo of one of the originals will show properly.


image by Mr. Nuke, on Flickr
10-17-2013 08:40 PM
fortp
Quote:
Originally Posted by nuke View Post
Changed mine with valve check, 25,000km (15500 miles) They did show wear, however definitely plenty of life in them. Just a convenient time to change together with the air filter. With higher rpm, would not expect plugs to last anywhere near what we get on cars.
I agree but on car you can expect them (iridium) to last near 200,000 km.
10-17-2013 07:59 PM
nuke Changed mine with valve check, 25,000km (15500 miles) They did show wear, however definitely plenty of life in them. Just a convenient time to change together with the air filter. With higher rpm, would not expect plugs to last anywhere near what we get on cars.
10-17-2013 04:34 PM
greywolf Plugs on the Glee are Iridium types besides. Maybe change them at a valve clearance check at some future time.
10-17-2013 04:03 PM
spidrgr My 2005 wee had a recommended plug change at 24 000km. Same for the air filter. They were regular plugs and only one per cylinder. The recommended plug change on the new wee is way to soon, considering there is two per cylinder and they are iridium. I intend to change the air filter at 24 000KM intervals on my 2013, as I did on my 2005. I will then take advantage of the fact that the gas tank is off to check the state of the plugs. But I am convinced I will not have to change them. Plugs now last up to 100 000 km on newer cars. So, 12 000?.....yeah, right!
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