mean 250 TB
#3
I guess shaving weight will help. Eliminating the oil injection, battery and starter (pull start could get old though), and replacing floorboards with pegs and adding aluminum rims is some weight saving mods I can think of.
#5
There was another member here, Jim I think, that did it to a Scrambler 400 which has the same floorboards. It was in an old topic where he had some pics. Look here: shaving weight on scrambler



