It has been ported, i dont know how well/ or who it was by, but it was at least smoothed out. It has a kiehn 38mm carb, head is milled .15, was gonna go .20 but didnt know if that was too much, I run maxima castor mix, at 32:1 with shell 93 oct (somtimes only 91) it has a airbox with a new uni filter, i do a lot of trail riding so i didnt take the box off, but for the drags i will, it has a PT pipe, and its only on its 2nd bore (1st oversize). I just rejetted, and got the carb setup correct, but it still doesnt feel like it has the power it should, but i dont have another to compare with...

Mark

 

I have tried 13, 12, &11T sprockets. I run my 11 all the time. I dune drag up Sand Mountain,UT though, so maybe you wouldn't like an 11 for what you do. I also use it for just riding the dunes and flats too, it works great. I launch in 2nd or 3rd(depending on sand cond.) and can't keep the front down.