How old are you? Lots of Vet guys are starting to get into 144's here, they say they are more fun to ride for them. I say build a replica of my bike (with the help of eric gorr) It is a 05 yz 250, 300 kit from gorr with mo betta porting and pump gas compression. Pro Circuit pipe and silencer, V-Vorce 3 reeds, 11oz fly wheel weight. Do this and you will have the most perfect bike I have had the pleasure of riding. It is extremely easy to ride if you exercise throttle control, never stalls in tight woods, starts first kick, crazy bottom and mid and does not fall on its face up top.