kill switch on 99 yz125

Joined
Sep 4, 2003
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#1
my kill switch on my 99 yz 125 sometimes works and other times it doesnt. i would just like to know if this can be fixed or if i buy a new one will it be the same?
p.s. is stalling the engine to stop it bad for it.
any help would be greatly appreciated.
thx