066 big bore portin

[Deets066]

got my big bore from baileys today and i want it ported before i put it in becuase i know im goin to so i might as well do it all at once. I know some guys that are really good with poting 2-stroke snowmobieles but have never done chainsaws. Is there different style porting that works better on these big bores?

 

[povchrisw]

search for "woods porting"

 

[rmihalek]

Before you do any grinding, install the piston and cylinder to make sure it all fits. If you have to return it, you won't be able to if it's been modified.

Also, why not run 5-10 tanks of fuel through it to be sure all is well and get the rings to seat. The, you'll have a baseline comparison for porting.