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Port Polishing???

6K views 1 reply 2 participants last post by  idooski 
#1 ·
I have to install a set of .10 over pistons in my 2003 Polaris 550 fan classic. Should I take my die grinder and polish the ports on the cylinders while I already have the jugs:Guillotine_anim: off? Anything to gain on this or am I just asking for tunning problems, etc??
 
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