Joyner JNSZ650DLB Owner's Manual And Parts Manual page 53

6) Insert the distributor slowly to the hole (See Figure 64). Confirm the direction of
distributor is as per the figure (See Figure 65,Figure 66). Tighten the nut of distributor
housing.
Figure 66
7) Fix the cover of the distributor (See Figure 67).
Figure 63
Figure 64
Figure 65