2003 Buell XB9S: Engine 3-77
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Reed Valve Replacement
NOTE
See Figure 3-117. Whenever the gearcase cover is removed,
the reed valve should always be inspected for cracks, chips
and breakage. The reed valve (2) is what moves out with the
downstroke and in with the upstroke of the pistons. The reed
valve stop (1) limits the movement the reed valve (2). See
3.11 CRANKCASE BREATHING SYSTEM.
Fasteners should be tightened to 30-40
in-lbs
(3.4-4.5 Nm).
See Figure 3-117. When replacing the reed valve it is
extremely important to ensure that both edges of the
reed valve stop (1) and the reed valve (2) are properly
aligned to prevent premature failure of the reed valve.
When replacing the reed valve it is not necessary to
replace the reed block. See Figure 3-116.
Figure 3-116. Reed Valve Assembly
1. Reed valve stop 2. Reed valve 3. Reed block
3
2
1
b1033x3x
Figure 3-117. Reed Valve Stop and Reed Valve
1. Reed valve stop 2. Reed valve 3. Stop screw
3
1
2
8759
1
2
3
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