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  1. #1
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    How many Hrs on 300x plugs

    Was just wondering how many hrs you guys/girls have on your plugs or has anyone had one foul yet ? Also stock or Cr9eix

    I have changed my plugs twice in 86 hrs last time was before the Han race at 63 hrs purely for the race and piece of mind there still in my ski and running strong have not had one foul out on me yet.the 300 seems to be doing Allot better on plugs then the 50-60.


  2. #2
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    went about the same time and changed them just for piece of mind like you did. it was still running fine. replaced with cr9ek's and havent had any problems

  3. #3
    Moderator #985 lasportsmn's Avatar
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    I still have original. Will change soon though at 100 hours. They claimed we could get that and I wanted to see. Looking accurate. Going back with original type.

  4. #4
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    Quote Originally Posted by lasportsmn View Post
    I still have original. Will change soon though at 100 hours. They claimed we could get that and I wanted to see. Looking accurate. Going back with original type.
    Wow pretty dang good.

  5. #5
    Moderator #985 lasportsmn's Avatar
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    I pulled them just to check them after the last races and while showing definate signs of use they are still working fine obviously no loss of power. I know anything can happen just like with my belt. That is still original and still good boost. I have the spare I put in place before the hahn still in there . Really impressed with these two improvements over the past machines.

  6. #6
    Self Confessed Day Dreamer toomanytoys's Avatar
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    Changed at 65 hours for no reason other than because I wanted to. They were fine and I'll use them as spare set if I ever need them. I think they could do 100 hours easy. Replaced with stock too.

  7. #7

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    Quote Originally Posted by FIRE0021 View Post
    Was just wondering how many hrs you guys/girls have on your plugs or has anyone had one foul yet ? Also stock or Cr9eix

    I have changed my plugs twice in 86 hrs last time was before the Han race at 63 hrs purely for the race and piece of mind there still in my ski and running strong have not had one foul out on me yet.the 300 seems to be doing Allot better on plugs then the 50-60.
    I over do it...34 hours on the boat with three sets of plugs. No damage, rust, oil, discoloration or any signs of detonation. All four look and burn the same. Just race security. They are the stock plugs. I cant shake the two stroke engine flashbacks...lol

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