Sparkplugs

cyclemike4

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Sep 18, 2016
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ky
I am a new owner of a used SuperTenere (2012). Went thru whole discussion while having Amazon.ca on another tab. My head is spinning from all the model numbers and equivalents . Does anyone have a link to reasonably priced 4 pack of genuine NGK or Denso iridium sparkplugs for XT1200Z on amazon.ca?

Thanks in advance.
I went down to the local auto parts store and picked up some NGK plugs for my bike. they were just like what it came with new so they were not any special plug. Just cost a few dollars.
 

das96s

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Jun 18, 2022
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DFW, Texas
I wouldn't get NGK spark plugs from Amazon or Ebay. Too many fakes out there.
If you don't want to try equivalent plugs like the discussion here, just go w/ the OEM:
Supplier: NGK
Brand: STANDARD SPARK PLUG
Part Number: CPR8EB-9
Part Type: Spark Plug
Comment: Gap 0.036"; Actual OE Manufacturer

Get them from local source Autozone, Oreilly, etc or trusted online website like Rockauto.com
 

sandro1973

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Jan 26, 2018
Messages
121
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Portugal
a 150 mile review with these spark plugs. Bike does run smoother. It does feel like it pulls a little more and a little more power but.....not sure if it's my "butt dyno" telling me this. I tried to tell myself it was the butt dyno but it does feel slightly better. I don't know if this is possible (could be another butt dyno thing) but I swear I feel less engine braking?
Not sure could've been my ride and how and how long I was stopping but it did seem bike is runner a little hotter.
But the smoothness and idling smoother was definitely there. Not sure about gas mileage yet.
Same feedback on my 2015 since changing to Iridium spark plugs. The engine seems to run ( and sound ) smoother, better acceleration, stable idling on warm-up but the temperature seems to run hotter and rise faster.

Another thing i'm noticing is that on colder days, the "engine/coolant" temp seems to be higher. But i really don't trust the temperature gauge that seems to go up and down on temperature fairly quickly.
 
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MacG

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Jul 18, 2014
Messages
4
Location
United States
I‘m getting ready to check the valves in my 2015. I found this thread when researching iridium plugs. It looked like the
CPR8EAIX-9 was the best replacement, but I was confused by the stock numbers which were different depending on where I looked. I called NGK to see what they thought, the guy was super helpful. When he specked the OEM plug out, he came up with the same CPR8EAIX-9. I asked about the difference in the stock numbers, he said the correct number is 95134. He said it doesn’t have the screw on terminal, but he is sending me some. I searched that number and they are available locally, as well as Summit Racing, Dennis Kirk and some others(about $9/ea.). My spark plug knowledge is limited, has anyone bought these from the USA distributors? Thanks
 

nd4spdbh

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Sep 29, 2022
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78
Location
Southern CA
Are yall just trying to justify purchasing 80+$ of sparkplugs with subjective differences or have there been calculated gains from these fancy things over stock NGK's? (like MPG, 0-60, dyno charts?)

Or is it simply because there are fresh plugs in the bike?
 

Jlq1969

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May 5, 2018
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Argentina
Are yall just trying to justify purchasing 80+$ of sparkplugs with subjective differences or have there been calculated gains from these fancy things over stock NGK's? (like MPG, 0-60, dyno charts?)

Or is it simply because there are fresh plugs in the bike?
Probably, the gain does not come from the dyno side, the savings from the iridium/platinum/rhodium….it comes from the fact that they last twice or more km/miles than normal spark plugs, that is to say…they maintain for twice or more time, the correct regulation of the electrode, which translates into that for double or more miles, the spark will remain at the degrees programmed by the ecu... that is, it will not suffer a progressive delay as a result of the wear of the normal electrode... which possibly translates into a maintenance of consumption, through double or more of the time... always talking about associating that consumption to the correct degrees of spark firing
 

Jlq1969

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May 5, 2018
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1,800
Location
Argentina
And the electrode design…..in normal spark plugs, the tip of the electrode is usually a circle…..and in iridium/platinum/rhodium plugs….the electrode ends in a fine, “hard” tip….this contributes to the fact that for more than double the km/miles, the spark is "a single powerful arc".....in normal spark plugs when the electrode wears out, the initial powerful arc...is transformed into multiple and weak arcs, which contributes to a more incomplete combustion... which will lead to the formation of carbon in the piston/valves... in less km/miles traveled.
 
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