Rivera Primo SU Rebuild - Manual (Page 6)

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Needle installed in seat.
Note slot at bottom of Bi-metal-
lic Lever for main jet adj. screw
Position Float Spindle Screw
for installation.
End of Main Jet Adj. Screw
lines up with Bi-metallic Lever.
Use 7/16” deep socket to
tighten Seat in place.
Tighten Float Spindle Screw
with blade type screwdriver.
Thread the Seat in by hand.
Bend Float tab to adjust Float
level as needed.
Now position float for installa-
tion of Float Spindle Screw.
Install Bi-Metallic Lever onto
Main Jet as shown.
Drop needle into the seat with
the rubber tip first in.
Check Float level and adjust
as necessary. See #68.
NOTE: Line up the small slot in the end of the Bi-Metallic Lever with the end of the Main Jet Ad-
justing Screw protruding into the inside of the carb body. See Figure 70 & 71.
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