NGK Spark Plugs - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 18 Old 02-23-2011, 12:47 PM Thread Starter
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NGK Spark Plugs

Is this a good replacement brand for OEM? Can anyone confirm that their# CR8E/1275 is the correct plug for my 2007 DL650?

Thanks,

2007 Triumph Bonneville
2007 DL650 (Prev bike)
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post #2 of 18 Old 02-23-2011, 12:58 PM
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I like the CR8EIX Iridium plugs as replacements. You'll probably never have to replace the plugs again. I put mine in at 17,000 miles and they look and work great at 60,000 miles. OEM replacements are NGK CR8E or DENSO U24ESR-N.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
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post #3 of 18 Old 02-23-2011, 12:59 PM Thread Starter
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Thank you sir. Thinking I might as well do them when I do my air filter.

Mike

2007 Triumph Bonneville
2007 DL650 (Prev bike)
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post #4 of 18 Old 02-23-2011, 10:46 PM
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Bought my NGK iridium plugs at Advance Auto Parts for $6.99 each, alot cheaper than the dealer.
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post #5 of 18 Old 03-04-2011, 02:54 PM
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more plug questions

I will most likely go with the iridiums as they have worked well in my cager =Nissan. I have 3 weestroms, 2 are crashed and I am in process of rebuilding one complete bike. I pulled plugs today : one had CR9E which is a different heat range than oem...bike was running great until I got slammed by a cager. The other bike looked like a recent tune up, K&N air filter and CR8EK plugs which have a double electrode. So my ? is why would they switch from oem and any real world experience or performance gains in changing plugs. I know its like an oil/tire thread but besides these iridiums which I am probably going with...any recommendations? Seems like oem should be best. dunno. thanks, Doug

Last edited by dougfromindy; 03-04-2011 at 03:07 PM.
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post #6 of 18 Old 03-04-2011, 03:09 PM
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I like the CR8EIX Iridiums. CR9E is a different heat range and I see no reason to go that way. The stock DL1000 plugs have dual electrodes and the stock DL650 plugs have single electrodes. Otherwise, the sizes and heat ranges are the same. Both bikes use the same CR8EIX plugs in Iridiums.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
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post #7 of 18 Old 03-04-2011, 07:00 PM
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going with the iridiums

putting the dual electrodes back in my spare engine because they look new, are interesting, and after fogging engine I just need something to keep the spiders out . Pitching the cr9e because are old and wrong heat range although bike ran fantastic with these. Going with the iridiums because greywolf says are good, they have been in my nissan sentra many miles and cage runs great...and lastly because my 99 yamaha yz400 uses this exact plug and runs super strong plus idles like a purring cat. , Oh and I also like the 3 black racing stripes on them.

Last edited by dougfromindy; 03-04-2011 at 07:03 PM.
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post #8 of 18 Old 03-06-2011, 12:20 AM
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I used the iridiums in my DL1000.

Why? I dunno, really. They're only about $7 each at Advance auto. The bike runs exactly the same, which is as expected.

I change them at every valve check, so I have absolutely no need for the longer life potential. I just feel a tiny bit more at peace somehow with iridium plugs.

2002 Suzuki DL1000 V-Strom, Dark Metallic Space Blue
1983 Suzuki GS850G, Cosmic Blue
2005 KLR685, Aztec Red - Turd II.2, the ReReTurdening
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post #9 of 18 Old 03-06-2011, 07:32 AM
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I changed the spark plugs on my Vee with 50,000 km soon after I purchased it. When I balanced the TB's, I found that spark plugs where not that accessible, so I decided to change them for iridiums (CR8EIX)

While I know that they are gonna last forever, I would have changed them back for new CR8EK with dual electrode if I didn't got a PC3. The dual electrode helps when the engine is in very lean condition.

My recommendation would be to stick with CR8EK or another multiple electrodes if not retuning the FI.
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post #10 of 18 Old 03-06-2011, 07:43 AM
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Only one electrode sparks at a time on a dual electrode plug. The spark occurs on whichever side overcomes the resistance of the gap first. I see no advantage for a lean condition.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general-...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informat...-you-have.html
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