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Spark Plugs

20K views 133 replies 34 participants last post by  VPREATR  
#1 ·
Any one changed the plugs on their 02? Need some help. :cryin
 
#3 ·
the whole nine....I have the airbox off and I see where they are but I am unfamiliar with the type of connectors on them. I can see you need to unsnap the plastic connector but after that, I dont know. I dont want to break anything. And no. 1 seems hard to get to. Is there a special tool required?
 

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#5 ·
Rhome said:
the whole nine....I have the airbox off and I see where they are but I am unfamiliar with the type of connectors on them. I can see you need to unsnap the plastic connector but after that, I dont know. I dont want to break anything. And no. 1 seems hard to get to. Is there a special tool required?


The connectors that are kind of yellow looking in your picture are the coil/plug caps.
 
#6 ·
Rhome,

The coils are integrated into the spark plug caps on many bikes today, especially the performance oriented bikes. No special tools are required to remove them. Just unplug the electrical connector and pull them out. Yes, that number one plug is a pain in the butt.

What spark plugs are you putting in? NGK or Denso? What plug part number?

Scott
 
#9 ·
Is that a CR9E plug I see? That is the wrong plug for the 2002 R1. The ignition system expects a plug with less resistance and that means less spark is getting to the combustion chamber.

The 8000 mile recommendation is for the iridium plugs. On the pre-2002 R1's, I would change regular plugs like the CR9E every 4000 miles.

The NGK plug you need for the 2002 R1 is the CR9EIA-9. Your dealer will claim it does not exist. Do not buy the CR9EIX. That plug has the wrong gap and it does not extend far enough into the combustion chamber.

Scott
 
#12 ·
Ok i have a problem too, i cant get my plugs out! (99 R1) I have the 5/8" socket, but its too big around (OD), where can i get a thin walled socket that will fit down inside the head?
 
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#14 ·
the tool kit? Well i dont know if i have a complete tool kit or not (bought it used). Ill check though, good point winders. I swear my brain quits working sometimes!
 
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#17 ·
I looked up the part #, it is NGK-CR9EI-X0-00 according to the 2002 Parts Guide.

I can see the confusion. Can anyone that has ordered these from Yamaha verify that this part # is indeed a CR9EIA-9? I don't want to spend $40 on plugs and end up with CR9EIX.
 
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#18 ·
I ordered a set of plugs for my 02 from Yamaha and recieved the CR9EIX. I knew that these were wrong and I called Yam. They said the CREIX were right but I wasn't convinced so then I call NGK and they said to put the CR9EIA-9 in the bike. BUT the kicker is, NGK said the plugs would not be available to the US for about another 3-4 MONTHS !!!! This is crazy !!! They said the plugs come from Japan only and this is the only way toget them. THIS SUCKS !!!!
 
#20 ·
Okay, this is starting to piss me off. I have 21,000 miles on my '02 and I still can't change the friggin plugs! The bike has been out for 10 months and owner's still can't perform REQUIRED routine maintenance?! I think a nasty call to Yamaha is on order.
 
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#23 ·
btw, not one on the dealerships had the airfilter in stock?////Whats up with that! tried 3 places! Should I be shocked...One dealer said it was not a regularly stocked item..........................................Whats up with "that?
 
#25 ·
Rhome,

As I said before, the CR9E is the wrong plug for the 2002 R1. The ignition system expects a plug with less resistance and that means less spark is getting to the combustion chamber.

If you can't find the NGK CR9EIA-9, get the Denso IU27D plugs.

Scott
 
#26 ·
While the CR9E should work, it is not the correct plug. It is a cheap substitute. It is a standard plug and nothing more. It is not the correct heat range either.
 
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