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head gasket problem

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i have an 06 yz134 and i am pretty sure i have a slight leak in the head gasket because after a few min of riding anti freeze starts running out of the overflow but the motor isnt hot or anything... i have alredy ordered a topend gasket set but my question is would it hurt anything to ride the bike a little before i get the parts?

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if the gasket set doesnt work, you may have a warped head.... im not sure about riding it, personally i wouldnt but thats just me

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the head shouldnt be warped i just had it cleaned up and machined for the 134 piston 2 months ago and havent put alot of hours on it since .... ill try the gaskets again and if it happens again ill look into it more

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That happened to me on my RM 250. I took it off and retorqued it. However my bike uses o-rings not gaskets.

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a lot of people neglect to check and make sure the cylinder deck is flat and the sleeve is protruding properly as well

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Your head may not be warped, but where the gasket leaks you will get some corrosion/erosion of the sealing surfaces. You should at the very least pull the head and cylinder and run them over some 400 grit paper taped to a thick piece of glass (use a figure 8 motion and hold the part flat). You will be surprised at how "wavy" the surface is. A better solution would of course be to take them to a shop and have them "kissed".

As for the original question, I would not ride with a leaking head gasket. You really won't know when you run the cooling system dry, and the more it leaks, the more if will foul the mating surfaces.

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ok thanks guys im gona pull it apart and check things out when i get the parts... its not leaking alot so i think it should be ok but ill try the sand papper thing any way

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