slipping clutch dissapears???

[250rforlife]

ok ino i already probly no the awnser but umm well my 400ex clutch was slipping a little bit. i changed the oil today and man was is old black and runny as water. i put some belray semi sentetic oil in(brand new just came out with this oil) and my clutch seems to not slip anymore? can this happen cause i changed my oil? thanks

[CJM]

Yes, oil thats broken down is not good in an engine that shares its oil with its transmission like the 400ex.

As a rule of thumb every 20-30 hours you should change it and for most a 10w-40 or 15w-50 oil is what you should use in these machines

[250rforlife]

thanks!!