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.26 tuning

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well, that would depend a lot on how well it was broken in and whether or not it has any air leaks. But honestly, it is a little more finicky
 
These engines are notorious for getting air leaks around the front bearing.

Every front bearing may leak a little air, because it is impossible to get a 100% seal between moving parts... BUT... the picco's tend to get serious leaks that effect the tune of the engine.

I suggest replacing the bearings after the first gallon if not as you get the engine. At the very least check the bearings once you notice it running eratic.

http://www.bocabearings.com/main1.aspx?p=product&id=9717&n=*ENK-091C-LP
 

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