JB Conversions 16-1204 HD Standard Length SYE Kit for the NP241 - Manual (Page 9)

9
14) Lift the mainshaft assembly and front output sprocket out of the
case as an assembly (Fig.13).
FIG: 13
15) The synchro hub ring may stay in the case with the mode fork as
the mainshaft is removed. If this happens, be sure to notice the top
and bottom orientation of the ring. Remove the mode fork and ring. It
is possible to reinstall this ring incorrectly causing malfunction (Fig.14,
14A).
FIG: 14 FIG: 14A