Question about 2002 Yamaha WR 426 F
Check the water system. is there oil floating on the water ?
check the oil. is it clean oil or milky ?
if yes on any of the above you have either a blown headgasket (hopefully - since you need just to replace the head gasket and maybe have the head skimmed by an engineering shop).
you ahve a cracked head or block/sleeve (the part the piston moves up and down in).
thats oign to cost a bit since they generally need to be replaced (you can have it welded up but this is generally not recommeneded).
Or you could just be worried about nothing and its just some water in the exhaust pipe.
Posted on Oct 06, 2010
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Posted on Jan 02, 2017
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