Rivera Primo SU Rebuild - Manual (Page 7)

Set the Main Jet so that it is
flush with the seat bevel.
Adjust the Main Jet Adjusting
Screw to set the Main Jet.
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Bi-metallic Lever & Main Jet
installed.
Install Viton Cup on Tickler
Stem.
Note the relief for the top of the
Main Jet.
Note that slot in Lever and end
of Adjusting screw are aligned.
Install Float Bowl Cover with
(4) screws & lock washers.
Float Bowl Cover in place for
installation.
Place oring into Float Bowl
Cover.
Sqeeze end of small Tickler
Spring so it will stay on Stem.
Use the Screw & Spring to
hold down Bi-metallic Lever.
Tickler Pump parts.
NOTE: When installing the Bi-metallic hold down screw, just thread it in until it stops. Care must
be taken to not overtighten as the screw might break. Install Viton Cup on Tickler Stem with open
end of Cup pointed away from stem. Using a pliers, squeeze the end of the small tickler spring
so that it will”pop” on the stem and stay. Install the fiber gasket onto the Tickler Nut and then slide
the Stem, Cup & Spring into the Nut.
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