Sportbike Track Gear
  • Change the spark plugs (03-05 R6)

    You will need approx. 2 hours and some basic tools.
    Here is what I used:



    the socket size is 10mm, philips screwdriver (flat was used to lift the air filter cover), extensions, spark plug socket, not pictured there - 5mm hex and a piece of a line

    1. remove the rear seat

    2. remove the front seat using the 5mm hex, the screws are located at te back, under the seat





    3. raise the tank, it is held by 2 hex type screws (5mm) in the front





    4. Using a piece of a line secure the tank in a raised position by connecting the front of the tank with a bar under the rear seat



    5. Remowe the air filter top cover - held by 6 philips screws



    6. Remove the filer (it is a good time to change it too) and you may find that the previous owner put a k&n filter and velocity stacks for you



    7. Remove the bottom of the air folter box, it is held by a 10mm bolt in the front



    and some lines and electrical connector that are attached on the left



    2 on the right



    1 in the back



    8. you will see that covering the spark plugs there is a heat shield - it's that black thing in front



    you will have to remove it, I found that it is easier to do it if you lower the radiator a little bit, so unbolt the left side of the rad



    and take the right side of the rad off too
    now just work the heat shield out until it comes out, it is not hard, just take your time (it took me 5 minutes)



    9. my advice - do the spark plugs one after another; start with # 2 and 3
    unhook the electrical connector and pull the coil out by turning it a little bit



    coil out



    now you will need a spark plug socket and some extensions or a long spark plug socket, the latter is better cause there is no danger of disconnecting anything in your extensions, I used whatever I had though, it obviously has to be longer than a coil



    it was tight but it worked



    the first spark plug is out



    replace it with the new one and thread it in, start with just your extensions, no wrench, just use your hand to make sure that you don't mess up a thread
    now move to the next spark plug, the plugs 2 and 3 are easier to take out



    10. get the spark plugs 1 and 4 out;
    disconnect the electrical connectors



    you can see the air line that will be in a way, disconnect it too, it is only held by a metal clamp





    replace the plug, repeat the same thing to the other side, disconnect the electrical plug



    disconnect the air line



    and replace the spark plug
    you now should have all the plugs out



    11. when you reconnect the coils, while pushing them down make sure that you push them all the way down, until there is no gap between the rubber boot and the engine cover, they should "click" if pushed all the way, also make sure that you reconnected all the electrical connectors back to the coils, and all the air hoses (spark plugs 1 and 4)

    12. reinstall the heat shield making sure that the rubber hoses go thru the same holes they were going thru before





    13. put the botton of the airbox and reattach all the air hoses
    on the left, 1 hose, 1 electrical connector



    on the back 1 air hose



    on the right 2 air hoses



    and the bolt in the front



    14. put the air filter in (change it prefferably) and put the cover back up, put all the 6 philips screws in



    15. unhook the tank, put it down, screw it in

    16. put back the front seat, screw it in

    17. put back the rear seat

    YOU ARE DONE!
    CONGRATULATIONS!
    This article was originally published in forum thread: How To: Change the spark plugs (03-05 R6) started by pecha View original post
    Comments 70 Comments
    1. The Raven's Avatar
      The Raven -
      good job

      doesnt the factory kit come with a spark plug removal tool that plugs into the 10mm socket? ive been using one from the F4i tool kit for the longest time
    1. Sherman's Avatar
      Sherman -
      Iam just putting this out there... I was able to change my plugs on the '99 w/o removing anything - gotta have small hands I guess and a plug socket that can "hold" the plug. I was also able to torque them to specs also. My knuckes were a little beat up after words.

      Maybe this cant be done on a 2g - even with small hands though, dunno.

      I had already change my plugs once before when I cleaned the carbs and I used this method, but I didn't feeling like going through it again.
    1. dbc-r6's Avatar
      dbc-r6 -
      Nice write up man. I gotta put plugs in my 04, but I keep putting it off cause it looks like so much damn work.
    1. renegade's Avatar
      renegade -
      ^ya...but once you do it once, its that much easier the next time round. ive never done that type of work before, not even on a car, so i took my sweet ass time (2 days)

      the heat shield is what held me back the most. i also removed the AIS and put in smog blog-off plates at the same time.
    1. bigjake's Avatar
      bigjake -
      Good write-up, I have to change my plugs out before next riding season. Any tips on removing that heat shield - I see in the writeup you lowered the rad first, did the shield come out from top or bottom?
    1. Nas19320's Avatar
      Nas19320 -
      Just man handle that shield. Its pretty flexible and honestly I've never had trouble getting it out. Getting it back in can be a little bit of a PITA .
    1. 03R6nCobra's Avatar
      03R6nCobra -
      Yea putting that heat shield back in place is a huge PITA. The job as a whole isn't too bad though.
    1. pecha's Avatar
      pecha -
      after lowering the rad the heatshield comes out from the top
      and yup, putting it back is harder but by then you know how flexible it is
    1. bigjake's Avatar
      bigjake -
      Quote Originally Posted by pecha View Post
      after lowering the rad the heatshield comes out from the top
      and yup, putting it back is harder but by then you know how flexible it is
      I'll try that, thanks
    1. Kyles R6's Avatar
      Kyles R6 -
      i dont know why everyone has a problem with the heatshield. ive taken it out maybe 9 times and ive never had a problem getting it in or out
    1. Kyles R6's Avatar
      Kyles R6 -
      make sure you properly gap your plugs too, just because theyre "pre gapped" doesnt mean dont check them.
    1. NOVAdam's Avatar
      NOVAdam -
      nice write-up.

      i have to say, these bikes (i.e. sportbikes) are a total PITA to work on, time-wise. with my VTX, i could change the oil in 5 minutes and the plugs in another 5 minutes.
    1. nine3's Avatar
      nine3 -
      Thanks
    1. Kyles R6's Avatar
      Kyles R6 -
      Quote Originally Posted by NOVAdam View Post
      nice write-up.

      i have to say, these bikes (i.e. sportbikes) are a total PITA to work on, time-wise. with my VTX, i could change the oil in 5 minutes and the plugs in another 5 minutes.
      hmm i find them quite easy or course im use to wrenching on diesel trucks where the clutch is over 100lbs and the rim/tire is 200lbs so its nice when i can use my 3/8 drive on almost everything
    1. NOVAdam's Avatar
      NOVAdam -
      ^ i didn't say it's difficult. i said they're a pain in the ass, time-wise. to change the oil, you have to take the bellypan off. and to get to the plugs you have to pull fairings off, too. yes, i understand that it's just the nature of a fairinged sportbike, i'm just saying everything takes more time on these bikes because of it.

      in the "time is of the essence" category (and since i have a young child, i don't get to just futz around with my bike as much as i'd like), exposed v-twin's really got it goin' on.
    1. Kyles R6's Avatar
      Kyles R6 -
      gotcha, yea everything is easy on them. the spark plugs were cake imo, just time consuming with all the shit you gotta get out of the way or take off
    1. NOVAdam's Avatar
      NOVAdam -
      ^ do those body clips that i've seen work? they look like they'd make the job waaaaay faster
    1. johndr83's Avatar
      johndr83 -
      Quote Originally Posted by NOVAdam View Post
      nice write-up.

      i have to say, these bikes (i.e. sportbikes) are a total PITA to work on, time-wise. with my VTX, i could change the oil in 5 minutes and the plugs in another 5 minutes.
      Yeap, my former roommate in WA had a VTX1300 and it was a very quick job to change oil and plugs. Those are badass bikes.
    1. NOVAdam's Avatar
      NOVAdam -
      ^ yeah they are. mine was the 1800. i miss her.

    1. johndr83's Avatar
      johndr83 -
      ^nice.

      Rode my uncle's 1800 back home in SoCal. Talk about torque. He got kinda mad at fme for doing a small wheelie infront of him on it.