questions about oil and filter to use in newly aquired yz400...

2 replies to this topic
  • 97zjguy

Posted March 12, 2005 - 09:19 PM


i recently purchased a 98 yz400 as some of you may be aware of, the one of many that would'nt idle properly but i have fixed. my question is what oil would you all recommend for a bike that makes no engine noises despite being 7 years old, but you have no idea what oil has been ran in it up to this point? thanx in advance for any input.

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  • 642MX

Posted March 12, 2005 - 09:30 PM


I've ran Motorex 10W50 and have had no problems.

  • 02YZ426

Posted March 12, 2005 - 09:36 PM


I use Motul 10w40 and never had any problems. You will get long clutch life with this oil, from my experiance anyway. Good stuff.

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