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post #1 of 13 Old 06-11-2011, 11:04 PM Thread Starter
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plugs

How many riders read plugs?

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post #2 of 13 Old 06-12-2011, 06:30 AM
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I look at mine when I change them, they all looked about the same. Never really had a diagnostic reason to look at them

OEM (standard) after 8K & Iridiums after 24K. A lot of carbon
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post #3 of 13 Old 06-12-2011, 08:03 AM
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Quote:
Originally Posted by marylandmike View Post
I look at mine when I change them, they all looked about the same. Never really had a diagnostic reason to look at them

OEM (standard) after 8K & Iridiums after 24K. A lot of carbon
It may be the photo angle, but the higher miled Iridiums appear to have a sloped off ground in the spark bridging area. This may have a negative effect under full power, referring to LDH's dyno findings he has commented on in the past.

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post #4 of 13 Old 06-12-2011, 09:41 AM
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It may be the photo angle, but the higher miled Iridiums appear to have a sloped off ground in the spark bridging area. This may have a negative effect under full power, referring to LDH's dyno findings he has commented on in the past.
I agree it does look that way. I have close-ups of all 4 and they all look like that. I can't remember what they look like brand new to know how drastic it is. I'll check that out when I get new ones.

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post #5 of 13 Old 06-12-2011, 01:45 PM
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I agree it does look that way. I have close-ups of all 4 and they all look like that. I can't remember what they look like brand new to know how drastic it is. I'll check that out when I get new ones.
I'll be keeping an eye for your update !

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post #6 of 13 Old 06-12-2011, 06:17 PM
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and the center electrode on the irridums are very rounded.... which makes it harder for a spark to form.

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post #7 of 13 Old 06-12-2011, 06:27 PM
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and the center electrode on the irridums are very rounded.... which makes it harder for a spark to form.
easy there Einstein

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post #8 of 13 Old 06-12-2011, 06:32 PM
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Quote:
Originally Posted by marylandmike View Post
I look at mine when I change them, they all looked about the same. Never really had a diagnostic reason to look at them

OEM (standard) after 8K & Iridiums after 24K. A lot of carbon
Carbon is another sign of typical 9er - it runs reach. Hence cold start without choke, hence the stink, hence pipes doesn't turn blue

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post #9 of 13 Old 06-12-2011, 08:17 PM
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Carbon is another sign of typical 9er - it runs reach. Hence cold start without choke, hence the stink, hence pipes doesn't turn blue

Wouldn't have it any other way

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post #10 of 13 Old 06-12-2011, 09:30 PM
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I read mine... they say NGK CR8EHIX-9 on them...

"Reason is not automatic. Those who deny it cannot be conquered by it" ~ Ayn Rand
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post #11 of 13 Old 06-12-2011, 10:29 PM
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Prefer reading books.

Going to stick standard plugs in when I change mine - is there really any point in the fancy pants ones on a 919?

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post #12 of 13 Old 06-12-2011, 10:45 PM Thread Starter
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Cool!!! Thanks for the input and humor. Plugs tell a great story! My read key is wide open to redline in a 2nd or 3rd gear and then kill switch with clutch pulled in. Roll into the garage and remove and evaluate. Toasty brown is my goal! And I'm close, long term miles tell less but are of importance. As for fancy expensive plugs, save your $. NGK standards every year make a happy bike, car, etc..... My thoughts and experience! Feel free to chime in.

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post #13 of 13 Old 06-12-2011, 11:35 PM
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and stick with the NGK's ... other brands are of less quality and wear out faster i have found. (namely denso vs ngk.)

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