You know Jerry I have no clue why he did it that route & why he only threw in one main jet & called it good. I know if he would have spent more time tuning he could have sqeezed more power at it. It still runs like garbage, worse actually. I Know hes mostly a 4stroke guy & probably knows nothing when it comes to 2strokes.. I had my dad drop it off to him & dad picked it up, the fella said it was good to go.I was watching Arlen dyno some 250r's & it looked like he did it way different. Hmmm