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  1. #1
    Team Bilford's Avatar
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    2018 300 Spark Plug, C-G or E-G?

    The owner's manual states KR9C-G or equivalent.
    I just removed the plugs from the engine and the engine came with KR9E-G.
    Did the E supercede the C? Why would BRP state to use the C and then install the E from Rotax???

    What's the story here from the all knowing GH crowd?


  2. #2
    DR2006RXP's Avatar
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    Quote Originally Posted by Team Bilford View Post
    The owner's manual states KR9C-G or equivalent.
    I just removed the plugs from the engine and the engine came with KR9E-G.
    Did the E supercede the C? Why would BRP state to use the C and then install the E from Rotax???

    What's the story here from the all knowing GH crowd?
    There was a change done to the 300 plugs to accommodate longer life the E was the original plug then possibly the C is the newer version but the E was let’s say G1.

  3. #3
    Team Bilford's Avatar
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    Both plugs are still available. Is one better than the other? Is the plug for the 2018 different than prior years of the 300? Was there a change in the plug spec due to the higher boost of the 18?
    Thanks for the help.

  4. #4
    www.eastcoastpwc.net Scott's Avatar
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    .....
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  5. #5
    DR2006RXP's Avatar
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    Quote Originally Posted by Scott View Post
    .....
    Thank you Scott you confirmed what I thought I remembered being the diff , just don’t want to log in and look for the picture .

  6. #6
    Team Bilford's Avatar
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    Thanks Scott, I would have never noticed that without the pic. I change my plugs every year and would never wear either out, but will go back with the E.
    Again, why would the 2018 manual not reflect this change while the marketing material clearly did???

  7. #7
    www.eastcoastpwc.net Scott's Avatar
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    Quote Originally Posted by Team Bilford View Post
    Thanks Scott, I would have never noticed that without the pic. I change my plugs every year and would never wear either out, but will go back with the E.
    Again, why would the 2018 manual not reflect this change while the marketing material clearly did???
    My 2018 manual shows the following
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  8. #8
    Team Bilford's Avatar
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    Quote Originally Posted by Scott View Post
    My 2018 manual shows the following
    Oh that is funny. My 2018 RXP-X 300 manual states "KR9C-G or equivalent".
    Surely you have a different model ski, LOL.

    After doing some research, either plug will work just fine. I expect the E will supercede the C over time. If you change more frequently than 100 hours, use either. I don't run any where near 100 hours/yr. I always change every year to avoid any corrosion or threading issues.

  9. #9
    www.eastcoastpwc.net Scott's Avatar
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    Quote Originally Posted by Team Bilford View Post
    Oh that is funny. My 2018 RXP-X 300 manual states "KR9C-G or equivalent".
    Surely you have a different model ski, LOL.

    After doing some research, either plug will work just fine. I expect the E will supercede the C over time. If you change more frequently than 100 hours, use either. I don't run any where near 100 hours/yr. I always change every year to avoid any corrosion or threading issues.
    Interesting for sure!

    I do have a different model ski, rxtx

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