'61HN252' by American Honda Motor Co. - Page 122 of 540
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
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3/9/2008 10:45 PM
[2005-2008] [TRX500 FA/FGA]
FUEL SYSTEM
Check the jet needle for stepped wear.
DIAPHRAGM/PISTON
Check the vacuum piston for wear or damage.
Check the diaphragm for pin hole, deterioration or
damage.
Check the vacuum piston for smooth operation up
JET NEEDLE
and down in the carburetor body.
Air will leak out of the vacuum chamber if the dia-
phragm is damaged in any way, even with just a pin
hole.
WASHER
SPRING
NEEDLE HOLDER
Remove the screw, set plate, air joint and O-ring.
SET PLATE
O-RING
SCREW
PRIMER KNOB
Remove the two screws while holding the primer
SCREWS
knob body.
PRIMER KNOB ASSEMBLY
Remove the primer knob assembly and spring.
SPRING
PRIMER KNOB ASSEMBLY
5-10