Question about 1974 Yamaha DT 360

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Oil in my air filter

Its a 50cc scooter an i noticed it wasnt running as normal, so i decided to check the air filter and found there was oil in it......could sum 1 tell me y please??????

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  • will2010 May 11, 2010

    Hi, some people oil there filters to stop water getting in. eg like racing k and n air filters that come with oil when you buy them.

    is there alot of oil?

  • Anonymous Mar 14, 2014

    also leaks oil on the botton of air filter

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  • Yamaha Master
  • 767 Answers

Oil in the air filter could mean tht the piston rings are weak thus throwing oil from the breather to the airfilter via the breather pipe.
Some filters do require a little oil like thK & N ones maybe in your bike it was over filled if at all.
You can run the engine with out the air fliter and see if theres smoke coming out of the breather pipe, if it does thn you will have to replace the piston rings or more over rebore the block and replace the piston kit.

Hope this helps !


Knight.YamahaSeca XJ750A 1981)

Posted on Mar 04, 2009

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