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Thread: excess blow off

  1. #1
    shhr's Avatar
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    excess blow off

    I took my RXT out for the first time today ( rode with Ultra250TN) and it ran good I was all over the Limiter with a top speed of 72 and the acceleration is awsome but I have a problem (acutually 2) my catch can was full and I had spray all around the catch can I have it mounted on a bracket above the battery elevated upward it was a fulk oil mixture and I am not sure yet but my oil appears to have fuel in it also I just got back so I have not really examined the oil I also noticed a little oil/fuel around the top off the head around the creas where the plugs go into the head this may be from the blow off but I dont know , Why am getting this much bolw off


  2. #2
    Got Boost? psycho rxp's Avatar
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    That is common with high boost B kits. The catch can's will get a fuel/oil mix in them. You will just need to keep the oil topped off.

  3. #3
    shhr's Avatar
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    what do you guys do drian them often or leave them open and dain in the bottom of the hull

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    Got Boost? psycho rxp's Avatar
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    Drain them often, hull is your option, if you don't mind the messy bildge

  5. #5
    Also keep the oil a t the bottom mark or half why up.If you keep it at the top mark it will blow out more oil for sure.

  6. #6
    shhr's Avatar
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    I plan on changing my oil and I will make sure not to over fill and i will test it again

  7. #7
    Red Devil's Avatar
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    Quote Originally Posted by shhr View Post
    I have it mounted on a bracket above the battery elevated upward it was a fulk oil mixture and I am not sure yet but my oil appears to have fuel in it also I just got back so I have not really examined the oil I also noticed a little oil/fuel around the top off the head around the creas where the plugs go into the head this may be from the blow off but I dont know , Why am getting this much bolw off
    Are there any bends at all in the hose where the blow by can settle? If so, that area can hold quite a bit and you will always have this. Make sure the hose is at its shortest route to the catch can. When you say there is oil by the plugs, is your dipstick being pushed out a little? If so, then that could be where the oil is coming from. Those B kits create a lot of air...

  8. #8
    HOSS's Avatar
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    Exclamation

    Well if a B kit does that its damadging your motor. One run and its filled? This will damadge the rings and deffinately the cylinder walls. Your valve guides will be smoked in no time. Sure you don`t have a ring stuck? I`d check the oil level to make sure not over filled. If its a stuck ring from sitting over winter, running it should free it up.

  9. #9
    shhr's Avatar
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    I am going to get some pictures of the catch can and where I see oil and see what you guys think

  10. #10
    shhr's Avatar
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    I checked my oil while it was cold I did not start it but it was over the full mark but I think it is because I am getting fuel in the oil, I will change the oil and keep it towards the bottom and run it again but here is some pictures the blue cap is what I used to drain it I removed almost 2 cap fulls

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    What do you guys think

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