Rivera Primo SU Rebuild - Manual (Page 4)

Prepare to install Throttle Disc
in the proper way. See NOTE.
Start second screw.
Use a small needle nose pliers
to break off all splits on screws
Start first screw in aligned
hole.
Tighten both screws being
careful not to overtighten.
Fully installed Throttle Disc.
Use hole alignment tool too
align shaft hole and disc hole.
Use hole align. tool too align
2nd shaft hole and disc hole.
Wedge a thin screwdriver be-
tween splits in screw to spread
36 37 38
41
45
43
42
40 39
46
44
47
Prepare to install RS Throttle
Shaft seal.
Fashion a tool to push the seal
in until it bottoms.
Seal fully seated.
NOTE: Start to install the Throttle Disc in the Throttle Shaft with the number “5” facing up and
first in the shaft slot. Use a straight pick to align the shaft hole with the Disc hole threading in the
screws after aligning each hole. Flip the Shaft and disc upside down to access the end of the split
screws. Wedge a thin blade screwdriver between the split ends of each screw and spread, being
careful to NOT turn the screw. Next, use a small needle nose pliers to break the split ends of each
screw.