Spark Plug Types? - KTM Duke 390 Forum
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post #1 of 46 Old 12-21-2013, 11:29 AM Thread Starter
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Spark Plug Types?

The Duke using a not well known spark plug type BOSCH Super R6 VR5 NE.

Breaking it down:

http://www.boschautoparts.com/BAP_Te...t_CHART_12.pdf

V = M12x1.25
R = resistor
5 = heat range
N = 26.5 mm thread depth, 4mm electrode lenght
E = electrode material is nickel ytttrium

The equivalents are not very obvious for such a new plug, however it appears the Duke 200 uses the same plug and the NGK Iridium equivelant for the Duke 200 is NGK Spark Plug (LKAR8A-9). If someone can confirm this I'd appreciate it.
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post #2 of 46 Old 02-11-2014, 12:49 PM
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same here ... i'm looking for Iridiums alternatives ...

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Originally Posted by Asiaoildude View Post
The Duke using a not well known spark plug type BOSCH Super R6 VR5 NE.

Breaking it down:

http://www.boschautoparts.com/BAP_Te...t_CHART_12.pdf

V = M12x1.25
R = resistor
5 = heat range
N = 26.5 mm thread depth, 4mm electrode lenght
E = electrode material is nickel ytttrium

The equivalents are not very obvious for such a new plug, however it appears the Duke 200 uses the same plug and the NGK Iridium equivelant for the Duke 200 is NGK Spark Plug (LKAR8A-9). If someone can confirm this I'd appreciate it.

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post #3 of 46 Old 02-11-2014, 02:29 PM
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Would you guys swap plus to something "better" right from the start or wait it out till their in need of changing to upgrade to what can be better?
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post #4 of 46 Old 02-11-2014, 03:29 PM
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I think the best would be to contact NGK. They are usually good at finding this stuff out.
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post #5 of 46 Old 02-11-2014, 10:37 PM
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it depends, if it's better and do not cost an arm n leg, i'll want to have it installed right away ...

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Originally Posted by HazardousDuke View Post
Would you guys swap plus to something "better" right from the start or wait it out till their in need of changing to upgrade to what can be better?

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post #6 of 46 Old 03-26-2014, 10:14 AM
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Originally Posted by philcuore View Post
same here ... i'm looking for Iridiums alternatives ...
^This, I wanna swap to Iridium's too. Everyone on here is running the stock plugs?
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post #7 of 46 Old 03-26-2014, 01:15 PM Thread Starter
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Quote:
Originally Posted by Strykar View Post
^This, I wanna swap to Iridium's too. Everyone on here is running the stock plugs?
Apparently the stock plug IS iridium.
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post #8 of 46 Old 03-26-2014, 03:05 PM
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Can anyone confirm that it is an iridium plug? Usually it says this on the plug, right? Not that I would suggest pulling it out just for this.
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post #9 of 46 Old 03-27-2014, 01:48 AM Thread Starter
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Quote:
Originally Posted by HazardousDuke View Post
Can anyone confirm that it is an iridium plug? Usually it says this on the plug, right? Not that I would suggest pulling it out just for this.
Actually not all of them will say it on the plug but the centre electrode is usually what I look at. An Iridium or other precious metal electrode is usually about 1/4 mm thick compared to the standard electrode which will be around 1.5mm thick.
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post #10 of 46 Old 04-09-2014, 02:33 AM
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Quote:
Originally Posted by Asiaoildude View Post
Apparently the stock plug IS iridium.
The ones in India certainly are not iridium.
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