hi after reading this item about the 300 i went put a got my self one yesterday its only a 2003 pro , im used to the old txt270 98/99 model mmmmmmmmmmmmm what a power different : it came with a fast action throttle but i think ill have to change it back to the slow and will have to take a few tips off you guys about adjusting the timing and changing the front sproket ,im a commercial mechanic my self but there is a bit of a diffrent between then ,just need to know if its a quick job to adjust the timing and how its done .................... (by the way im new to this forum)