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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 5 Apr 2006
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oil coming out of oil tank

hi, need some help. my 89 3aj has started pushing oil out of the oil tank cap, i have dropped the oil and checked that it wasn't over filled. I'm thinking one of the head gaskets is going and the piston is pressurizing the the engine and pushing the oil back up and out the tank. i have checked the oil and theres no metal fillings so that side is ok and she rides realy good. though when i started her this morning she smoked quite a bit.
10 days till the big ride, not good timing at all.

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Old 6 Apr 2006
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I belive the engine base is vented in to the air box, So thats not likley the trouble. I'd suggest completly draining the oil and refill with the correct measured amount. I over filled my bike before I learned how to check the level properly.
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  #3  
Old 6 Apr 2006
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hello,

yes, first check if the cap was on properly.

...than check if you filled too much oil, drain it all ...

... than check if the seal ( a kind of cork seal ) in the cap is in.

what did you find out ???

greetings

mika


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