ST, RS, or T3?
I don't know anything about the ST & RS models, but it should be pretty simple on the T3 (885) Sprint. With those, it would just be a question of figuring out which of the other T3 models used the reverse linkage & switching it out. I think.
You might try asking in the forum for your model;
Sprint Forum for ST or RS &
T3 Forum for carbureted Sprints.
HTH,
-Kit
