Alternative Spark plug - Kawasaki Versys Forum
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post #1 of 25 (permalink) Old 02-20-2009, 06:32 PM Thread Starter
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Wink Alternative Spark plug

Hi V Bikers,

The V OEM plug is NGK CR9EIA-9 (only one listed in manual)

Having seen that spark plug stick coil is made by Denso, being using Denso plugs. The plug listed was IU27.

However this plug change, being the guinea pig I would like to be, I trying the Denso IU27A. See the IU and IU-A spec difference below:

http://www.globaldenso.com/en/produc...er/lineup.html

Basically, the same plug with a slanted ground eletrode.

Have been about 1000 kilos now and IMO, It revs and starts easier...

Thanks and Ride Fast and Safe.
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post #2 of 25 (permalink) Old 02-21-2009, 12:12 AM
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Denso's IU27 is already being tried: http://www.kawasakiversys.com/forums...ead.php?t=2571

IU27A's slant cut electrode results in a spark position of 1.0 mm compared to IU27's 0.7 mm, and a spark electrode height of 2.9 mm instead of 2.6 mm. http://www.globaldenso.com/PLUG/power/spec.html
IU27D, or IU27 (with removeable nut on threaded connector) are the taper cut ground electrode plugs listed for NGK's CR9EIA-9, but you should be alright.

Denso's Iridium Racing IU01-27 is interesting too with its all-platinum slanted ground electrode. Ground electrode projection is -1.8 mm instead of -0.5 mm, with -0.3 mm spark position and 1.2 mm spark electrode height.
http://www.globaldenso.com/PLUG/racing/spec.html
http://www.globaldenso.com/PLUG/racing/features.html

Last edited by invader; 03-28-2010 at 12:30 AM.
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post #3 of 25 (permalink) Old 02-21-2009, 02:26 AM Thread Starter
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Thank you, Invader.

This is the 2nd time you helped me with some alternative choices.
Pardon my inexperience with Jap bikes, this is my first one.
Riding BM boxers since 17. No regrets but JOY since getting the V.
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post #4 of 25 (permalink) Old 02-21-2009, 04:41 AM
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(They are actually both the same length... Just look at the ground electrode at bottom of pic.)

IU27D:
IU27A:

Last edited by invader; 02-21-2009 at 05:24 AM.
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post #5 of 25 (permalink) Old 02-21-2009, 05:02 AM Thread Starter
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Thanks again.

Ride Fast and Safe.
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post #6 of 25 (permalink) Old 02-21-2009, 06:58 AM
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I see the IU27D has a longer thread length than the IU27A. How does this compare to the OEM plug? I wouldn't want to put in a plug that is too long or to short.


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post #7 of 25 (permalink) Old 02-21-2009, 07:10 AM Thread Starter
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Quote:
Originally Posted by invader View Post
Denso's IU27 is already being tried: http://www.kawasakiversys.com/forums...ead.php?t=2571

IU27A's slant cut electrode results in a spark position of 1.0 mm compared to IU27's 0.7 mm, and a spark electrode height of 2.9 mm instead of 2.6 mm. http://www.globaldenso.com/PLUG/power/spec.html
IU27, or IU27D (with removeable nut on threaded connector) are the taper cut ground electrode plugs listed for NGK's CR9EIA-9, but you should be alright.

Denso's Iridium Racing IU01-27 is interesting too with its all-platinum slanted ground electrode. Ground electrode projection is -1.8 mm instead of -0.5 mm, with -0.3 mm spark position and 1.2 mm spark electrode height.
http://www.globaldenso.com/PLUG/racing/spec.html
http://www.globaldenso.com/PLUG/racing/features.html
As Invader had pointed out, I realised there is a small spark eletrode height difference (0.3mm). Hence, I will be changing my plugs ASAP as have the IU27 in stock here at home.

What I would also do is clarify this issue with the my Denso dealer as he recommended the IU27A. However, I is my fault not to double check.

If I have caused any confusion in the V world, sorry for this

Ride Fast and Safe.
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post #8 of 25 (permalink) Old 02-21-2009, 07:39 AM
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So the Denso OEM replacement plug would be the IU27, no (A) no (D) Correct?

Also, what would be the average price differnce? and can it be purchased at a regular automotive store?


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post #9 of 25 (permalink) Old 02-21-2009, 08:26 AM Thread Starter
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Smile

Hi Nortasaki,

I am 100% sure A-OK for the IU27 5363.
I am unsure of the IU27D as not seen it before.
Maybe possible the IU27D is not sold here in Malaysia (Lat 3 08 N long 101 42 E)
2 items to find out from my Denso dealer.

Not able to help you on the price and availabity part.
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post #10 of 25 (permalink) Old 02-21-2009, 09:11 AM Thread Starter
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V Guys,

I just read again an email I wrote to Denso Japan on the V.

[email protected]
[email protected]

date5 December 2008 14:43
subjectPlugs for Kawasaki Versys
mailed-bynotes.denso.co.jp

hide details 05/12/2008 Reply


Dear Sir.
Kawasaki Versys 650cc, 2cylinders.
We suggest IU27 Iridium Power ofr your nice Kawasaki.
IU27 dimensions are 10mm thread diamter, 19mm thread lenghth,16mm Hex.
IU27 ha world smallest 0.4mm Iridium alloy center electrode wich enhances your MC
power,acceleration.
As IU27 has golden terminal nut on top. please remove it by hand when istallation.
If IU27 is hard to find, IU27A is also applicable.
We attach IU27 picture ofr your reference.

(See attached file: IU.jpg)


Hope this clears the air, Best Regards.
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post #11 of 25 (permalink) Old 02-21-2009, 04:53 PM
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Quote:
Originally Posted by Nortasaki View Post
I see the IU27D has a longer thread length than the IU27A. How does this compare to the OEM plug? I wouldn't want to put in a plug that is too long or to short.
Like I mentioned above the pics, they are both the same length. Pics are there to show the difference between taper cut, and slanted ground electrode.

IU27D and IU27 are Denso's recommended replacements for NGK's CR9EIA9. They are both the same spark plug; IU27 has the removable terminal nut on the threaded connector, while IU27D doesn't. http://www.globaldenso.com/PLUG/cros...e/1037_08.html

IU27D is a factory installed plug on some motorcycles that don't need the nut on threaded connector. (as with the Versys.)
For a Yamaha YZFR-1 (bottom of page): http://www.globaldenso.com/en/produc...fig/index.html
Suzuki Hayabusa and B-King 1340: http://www.globaldenso.com/PLUG/topics/2007/10_1.html

-"Suzuki Genuine P/N for IU27D is 09482-00557... For aftermarket, IU27 can be used instead of IU27D."
You won't neccessarily get a Denso IU27D if you order a plug from Yamaha for a YZFR-01 (R1) though, and maybe even Suzuki's part # 09482-00557, as NGK's is a more available substitute.

IU27 and IU27A are easier to find than IU27D.
http://motors.shop.ebay.com/_Car-Tru...dZm270Q2el1313

Last edited by invader; 02-22-2009 at 02:46 AM.
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post #12 of 25 (permalink) Old 02-24-2009, 08:01 PM Thread Starter
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Just found another alternative plug for V by Autolite.

http://www.power-21.com/AutolitePowe...otorcycles.pdf. See Kawasaki under 650cc

http://www.power-21.com/AutolitePowe...=A&pn=XS4302DP

Ride Fast and Safe.

Last edited by stlee29; 02-24-2009 at 09:13 PM.
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post #13 of 25 (permalink) Old 02-25-2009, 04:10 AM
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Yeah I checked those Autolite's too, but they an inferior Chinese product. Even NGK's are better.

Last edited by invader; 02-25-2009 at 05:08 AM.
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post #14 of 25 (permalink) Old 02-25-2009, 04:22 AM Thread Starter
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Copy on that. Thanks for sharing, Invader.
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post #15 of 25 (permalink) Old 07-17-2009, 06:33 AM
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I did a search on this forum but nothing came out for NGK CR9EIX, it should fit on the V
but I am not sure if that's a good alternative for V's spark plug. Any advice?
Thanks!
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post #16 of 25 (permalink) Old 07-17-2009, 07:00 AM
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I had a very subtle increase in throttle snap on the BMW's when I switched to the Denso Iridium- I think I will fool with some of these suggestions when mine is due for a plug change. But given their condition at the last check, that will be 2012...
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post #17 of 25 (permalink) Old 10-25-2009, 07:44 AM Thread Starter
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Saw this spark plug on http://www.e3sparkplugs.com/pdf/powersport_catalog.pdf. See
Versys KLE650A; 650CC (2008) ..............................Model E3.38 gap .036

Any input on this plug? Based in the USA.

Thanks.

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Ride safe,
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post #18 of 25 (permalink) Old 10-25-2009, 05:24 PM
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E3 spark plugs are low quality non-iridium, and made in China... Not recommended.

Last edited by invader; 10-25-2009 at 07:46 PM.
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post #19 of 25 (permalink) Old 10-25-2009, 07:23 PM
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Make sure you use anti-seize on the threads. I've read horror stories of plated plugs welding themselves in their holes if left a long time. Although these were in automobiles.
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post #20 of 25 (permalink) Old 10-25-2009, 07:32 PM
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NGK and Denso spark plugs are manufactured with special shell plating on the metal body. Anti-seize compound may cause over-torquing and is not recommended. The M10x1 (10 mm) thread plugs should be torqued to 11 ft-lbs.

NGK Technical Bulletin: http://www.ngkplugpro.ca/content/con...SparkPlugs.pdf

Tightening info: http://www.ngk-sparkplugs.jp/english...q18/index.html

Last edited by invader; 10-25-2009 at 07:43 PM.
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