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Should I freshen top end??

2K views 6 replies 6 participants last post by  chilly willy 
#1 ·
2007 600 SDI renegade,with 15000km,9375mi. 120psi both sides,machine runs sweet.
Should I replace top end?and if so, are the dual ring pistons a better way to go??
 
#2 ·
I wouldn't touch it.
 
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