Spark plugs - ZX6R Forum
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post #1 of 11 Old 05-24-2014, 06:36 PM Thread Starter
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Spark plugs

So I replaced my spark plugs with the original equipment 05 636, I think they were br6e plugs. Anyways my bike doesn't seem to run the same . I have a power commander and K&N and m4 exhaust wi hollowed exhaust pipe. It doesn't have the power it used to and i have to play with the idle roger it to stay running . I only changed plugs and it was running great before but the plugs had 25k on them so I thought I was doing something good for myself. Apparently not. ,! Do I have to change my map cus the plugs?
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post #2 of 11 Old 05-24-2014, 06:37 PM Thread Starter
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Not idle roger! Lol I have to turn the idle up when I strt it cold and then turn it down when it warms up. Didn't have to do any of this before. .... Any ideas?
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post #3 of 11 Old 05-24-2014, 07:10 PM
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Did you gap them right and put everything back together right almost sounds like a vacuum or intake leak I would take it apart and double check everything
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post #4 of 11 Old 05-24-2014, 09:23 PM
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I think so too. Air leak.
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post #5 of 11 Old 05-26-2014, 05:05 AM Thread Starter
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Well it's not a vacuum leak ,,,, checked all around . I didn't gap the plugs tho. Being a car mechanic, I guess I should've checked but car spark plugs have been coming pre gapped for like over a decade now lol! So I didn't even think of it but your right small engine plugs like mowers and equipment your supposed to check gap on, and br6e prolly do go into small engines,,,,, I'll have to check, I did however go into my map and change the 0% throttle fueling settings to 0 .... They were at 10s on the map but it smoothed right put when I did that,,, my big problem is that it has less throttle response than it did when I first installed the PCV,, soooooo..... Thx for the ideas...
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post #6 of 11 Old 05-26-2014, 05:40 AM
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Can you verify what plugs you used? You should be using CR9EK plugs or if you want to "upgrade" to iridium use CR9EIX plugs. If you went with the CR6 series that heat range may not be optimal for the bike.

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post #7 of 11 Old 05-26-2014, 06:51 AM
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Replace old plugs and test. Fiddly and annoying, i know
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post #8 of 11 Old 05-26-2014, 06:55 AM
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Quote:
Originally Posted by corkoli View Post
Replace old plugs and test. Fiddly and annoying, i know
Yup, this would tell you whether it's the plugs or whether something else got messed up
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post #9 of 11 Old 05-26-2014, 07:13 AM
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Quote:
Originally Posted by Sethboy716 View Post
So I replaced my spark plugs with the original equipment 05 636, I think they were br6e plugs. Anyways my bike doesn't seem to run the same . I have a power commander and K&N and m4 exhaust wi hollowed exhaust pipe. It doesn't have the power it used to and i have to play with the idle roger it to stay running . I only changed plugs and it was running great before but the plugs had 25k on them so I thought I was doing something good for myself. Apparently not. ,! Do I have to change my map cus the plugs?
You don't have your facts correct.

A B series spark plug is a 14mm, no way no how you shoved a 14mm plug in a 10mm hole

The plugs that came stock are CR9E, so recheck what plugs you installed, if you truly went to a CR6E. I think you know where there problem originates from

And spark plugs have came pre-gapped for as long as plugs have been made, but you still need to check the gap and make sure it is correct for your application.....on all vehicles.
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post #10 of 11 Old 05-26-2014, 07:37 AM
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All it takes it a slight bump on the electrode to throw the gap off on the plugs. As River said ALWAYS double, triple check the gaps before putting them in. Kinda like cutting wood, measure twice, cut once kinda thing. Not to mention checking that you have the right series plug in first place.

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post #11 of 11 Old 05-26-2014, 03:46 PM Thread Starter
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I pulled the old plugs out of the garbage and made sure they are the same and they are cr9e. So I went onto the PCV thing and I changed maps to find one Thad idle better and I found one that the 0% throttle settings were all zeros and it idles great now! So I went back into my map and changed the settings to all zeros for the 0% throttle range and it idles beautiful now.... But I think the map has everything to do with it because now it also is like a dog getting on the throttle and letting the clutch out at a stand still in 1st gear... I think I need to tweak my map more or find a different one all together ..... Hs anyone eve r heard that ? Someone who had to change maps after replacing spark plugs to get it to run correctly.
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