ok I put the TT250 all back together and gave her a run.... it ran great no flat spots anywhere and she pulls much harder than she did stock ! I came back home and pulled the spark plug to check the color and it is dark tan to light brown which is exactly what I want for a air cooled 4 stroke !
I got up to 55 mph on a slight incline and in general had no troubles at all
she started with a single kick after I warmed it up and then moved it out of the shop....
all in all I will say it was a worthwhile endeavor.... it's stronger by quite a bit
and starts real easy when cold and using the choke so it's a total win !!!!
.....
Bob....