Two Stroke Motocross

Two Stroke Motocross Forum => Technical => Topic started by: rpmgraphics on November 06, 2013, 11:26:23 PM

Title: porting and head mod???
Post by: rpmgraphics on November 06, 2013, 11:26:23 PM

Was originally planning to have my son's 2012 yz125 ported and head modded by KB5 in PA.  Running into $$$ issues during the upcoming offseason and might not have enough to do the porting.  So here is the big question.  Does a head mod provide enough of a USABLE difference to make it worth doing by itself.  Bike is stock with the exception of the FMF Fatty/Shorty.  Want to keep using Sunoco 93 pump gas.  Suspension has already been fine tuned, does not like any aftermarket reed systems and he rides it like a boss.  Races mx in the mid-atlantic states and is upper B class rider. 

Title: porting and head mod???
Post by: TMKIWI on November 07, 2013, 06:41:45 AM

Quote from: rpmgraphics on November 07, 2013, 07:26:23 AM

So here is the big question.  Does a head mod provide enough of a USABLE difference to make it worth doing by itself. 

Can do. Depends on what the head mods are. If your squish was out of spec just correcting that can make a big difference.