hey marcus i'm reading the thread on tuning a rm 125 and i see you've dynoed the bike i was just wondering if you've had the chance to dyno a big bore 144? i'm wondering what kind of horsepower gain the 144 vs stock i'm going to see next week when i get my top end back. also if you dynoed the big bore with different reeds,pipes or gas i would like to see the difference on some graphs.one last question, my bike is the kx-144 and was wondering if changing the pv spring like your doing on the rm would help at all on the kx. thanks for any info