My 1996 Xplorer 300 2-stroke has been trail ported, and be bored out 60 thousands(oil pump failure). Is there any jetting changes I should make? I have the stock 30mm Mikuni roundslide carb with #155 Main Jet and #40 Pilot Jet. Thanks for any Help[img]i/expressions/face-icon-small-smile.gif[/img]

 

yes,a porting and a boring worth an increase in jetting specs,
i don't known those 30mm but,go higher to 200-220,and increase pilot
at least 55-60 and go from there,just some good guess but need to be
dialed-in as well with porting.