5. FUEL SYSTEM MXU 500 IRS
ASSEMBLY (17)
Carburetor reassembly can be performed in
the reverse order of disassembly. When
reassembling, carefully observe the (1)
following instructions.
Assemble the parts taking (2)
consideration of their function. (3)
Before assembling, wash all of the
parts in a clean petroleum based
solvent.
Replace O-rings and seals with new
ones.
After cleaning, reinstall the pilot screw
to the original setting by turn the screw (4)
in until it lightly seats, and then
backing it out the same number of
turns counted during disassembly.
(1) Spring
(2) Retainer (5)
(3) Jet needle
(4) Piston valve
(5) Cover
(6) Spring (8)
(7) Casting enrichment valve
(8) Choke air in
(9) Main jet
(10) Needle jet holder (16)
(11) Needle jet
(12) Slow jet
(13) Float valve (11) (9)
(12) (10)
(14) Float (13)
(15) Float pin
(16) Pilot screw (14)
(15)
(17) Cap
(18) Cover
(19) Float Chamber
(7) (6) (18)
(19)
5-17