Spark plug change or not? - Wrist Twisters
 
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post #1 of 19 Old 09-17-2008, 10:43 AM Thread Starter
 
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Spark plug change or not?

Hey everyone. I'm coming up on the 8k mile mark which means spark plug changing. I've read thru some past threads and the general consensus seems to be it's not really needed that early. Is this correct?

Thanks,
Cris P.

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post #2 of 19 Old 09-17-2008, 12:01 PM
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i honestly dont think they need to be changed at 8k... but i have been wrong before... is it running good?? dont fix it.. if its running rough?? the price of a set of plugs aint that much..



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post #3 of 19 Old 09-17-2008, 12:18 PM
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Hey barton, your avitar is AWSOME!

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post #4 of 19 Old 09-17-2008, 12:35 PM
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why thank you sir



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post #5 of 19 Old 09-17-2008, 01:57 PM
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I'm at about 17,000 miles and am going to change my plugs. The previous (original) owner said he had not changed them so I'm going to do it this week.

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post #6 of 19 Old 09-17-2008, 02:57 PM
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Get some of semi-gray's block off plates and change the plugs when you install them.

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post #7 of 19 Old 09-17-2008, 03:36 PM
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I did the first change at 16K and have yet to do the second with 35K on the clock.

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post #8 of 19 Old 09-17-2008, 05:04 PM
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robtharalson replaced his after 47,224 miles.


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post #9 of 19 Old 09-17-2008, 08:27 PM
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I replaced my plugs at 18,000 miles and added Block of Plates from semi grey. I would say that the plugs still have a good bit of life left in them and I put them in a box to possible use at a later date if I can't afford to replace plugs, but they are not that expensive so i doubt that will happen.

I'd say don't worry about the plugs unless you are adding the block off plates or just really want to do some work to your bike.

'04 919---40k----6/18/10 SOLD

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post #10 of 19 Old 09-17-2008, 08:29 PM
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i have a question???? what are block off plates?? and what do they do??



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post #11 of 19 Old 09-17-2008, 08:48 PM
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Quote:
Originally Posted by barton664 View Post
i have a question???? what are block off plates?? and what do they do??
I have a question for you.....Do you know what the Flapper mod is? The block off plates are basically finishing up the Flapper mod and get rid of a bunch of vacuum hoses and cleans up the engine up by your spark plugs. They also help backfiring.

Block off plates are the chrome things on the engine right behind the spark plugs wire. Examine what they look like and then go look at your engine.
Attached Images
File Type: jpg block off.jpg (338.1 KB, 51 views)
File Type: jpg block off 2.jpg (315.1 KB, 43 views)

'04 919---40k----6/18/10 SOLD

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post #12 of 19 Old 09-18-2008, 09:09 AM
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ohhhhh thats a block off plate... ok..



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post #13 of 19 Old 09-18-2008, 09:34 PM
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I changed mine at 15,000 and could have waited much longer.

[
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post #14 of 19 Old 09-19-2008, 03:40 AM
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Changed mine at 8K...prob didnt need it. I put in Iridiums, so not planning to change again for a long time.

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post #15 of 19 Old 09-19-2008, 05:48 AM Thread Starter
 
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Well it sounds like I shouldn't worry too much about changing them now. On long highway trips I'll average around 50+ mpg when holding a constant speed, so I'm assuming everything is running good.

Maybe I'll do them when I get around to it and the block off plates.

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post #16 of 19 Old 09-19-2008, 06:09 AM
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Just run the recommended NGKs. Accept no substitutes. I've run other brands in my hondas over the years and the NGKs work best.

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post #17 of 19 Old 09-19-2008, 12:26 PM
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Quote:
Originally Posted by zookmor View Post
I have a question for you.....Do you know what the Flapper mod is? The block off plates are basically finishing up the Flapper mod and get rid of a bunch of vacuum hoses and cleans up the engine up by your spark plugs. They also help backfiring.

Block off plates are the chrome things on the engine right behind the spark plugs wire. Examine what they look like and then go look at your engine.
If you bike is bone stock, do you get any benefits from installing the block off plates?

2003 Honda 919 - flapper mod, Clear Alternatives Smoke Tailight w/ integral turn signals, Stebel Nautilus air horn, DIY fender eliminator, LED license plate bolts, LED front turn signals, no resistor or new flasher so I blink like crazy.
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post #18 of 19 Old 09-19-2008, 12:31 PM
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Quote:
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If you bike is bone stock, do you get any benefits from installing the block off plates?
You will notice small differences if you are in tune with the bike. Take a good ride and then do the flapper and block offs and then take another ride over the same route and you should be able to tell the difference. I highly recommend them.

My friend complained that his bike did not seem like it had enough air while we were riding aggressively. I disconnected the flapper and before we were out of the neighborhood he commented that the bike was much better. He just ordered the Pair block off plates.

'04 919---40k----6/18/10 SOLD

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post #19 of 19 Old 09-19-2008, 12:36 PM
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Where should someone order the plates? I remember reading that someone on here was selling them, but can't find it again.

2003 Honda 919 - flapper mod, Clear Alternatives Smoke Tailight w/ integral turn signals, Stebel Nautilus air horn, DIY fender eliminator, LED license plate bolts, LED front turn signals, no resistor or new flasher so I blink like crazy.
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