why do you have to change fork oil?

Joined
May 5, 2007
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#1
my manual says to change my fork oil really often,cant remember exactly how often but i think it was every race.Why?what happens if you dont change it?
 
Joined
Oct 19, 2006
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Merrillville,Indiana
#2
When my son gets done with a moto,you can not touch the suspension,it gets that hot! New the oil is questionable. Trail riding,I do not know,check the temp! The oil gets trashed with aluminum flashing.