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Discussion Starter #1
i have a 2003 300ex and was just wondering on the right side theres a plug on the head thats leaking oil, not much i would say over the summer about a shot full is it normal for oil to come out of there, i was told its no big deal that you will get some over time
 

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If oil shoots out of your fourwheeler, i'd say thats not normal. Others will know more about it than me.
 

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agree^^^^^^^^^^^^^^^^^^^
 

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Discussion Starter #4
its not much , but you can see it on the head by the plug,what advice do you all have for me thanx
 

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If it bothers you I would pull the plug and see if its a o rind seal and flip it and if that doesn't help replace it or put a light coating of orange RTV around the o ring.
 

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The motor should not leak any oil. It is leaking near the spark plug? Can you get a picture of the piece? We could then see what you mean?
 

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Discussion Starter #8
well i dont have any pics but if you look at the new members,new from dallas it looks like hes having the same problem as me, you can see the plug im talking about in his pic
 

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Discussion Starter #10
i think i gave the wrong name look at 06lilredrocket post he has a photo of his quad and youll see what i mean, the black plug about the size of a half dollar
 

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I've seen a lot of 300EX do this over time after it gets a few miles on it. All of the Hondas usually get this problem after they start getting some miles on them. It's the round black rubber seal between the valve cover and the head. It is located at the end of the cam. It's usually no big deal, but it will leak enough to get your engine oily. I would just pull the valve cover and put a thin coat of gasket sealant on it. Not much, just a thin coat. I would use Hondabond. That is great stuff and it don't cure and get rubbery like RTV sealant does. I wouldn't use RTV sealant, because the excess will squeeze out and when it cures it will be rubbery and if it breaks loose on the inside of the engine, it could stop up your oil pump or oil drain holes or something and cause a lot of damage. I learned that the hard way a long time ago. I won't use anything but Hondabond, now.
 
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