Buell 2007 LIGHTNING Service Manual page 235

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8638
Figure 3-93. Installing Piston Rings Transmission Shaft
Retaining Ring Pliers (Part No. J-5586)
2.
See
Figure 3-93.
Apply engine oil to piston grooves. Use
TRANSMISSION SHAFT RETAINING RING PLIERS
(Part No. J-5586) to slip compression rings over piston
into their respective grooves. Be extremely careful not to
over expand, twist rings or damage piston surface when
installing rings.
NOTE
Install second compression ring with dot towards top.
x0486x3x
Position ring end gaps at arrows
Front
Piston
Pin
Rear
Figure 3-94. Ring End Gap Position
3.
See
Figure 3-94.
Install rings so end gaps of adjacent
rings are a minimum of 90° apart. Ring gaps are not to
be within 10° of the thrust face centerline.
3-66
2007 Buell Lightning: Engine
10562
Figure 3-95. Measuring Ring Clearance in Groove
4.
See
Figure 3-95.
Check for proper side clearance with
thickness gauge, as shown. See
NOTE
If the ring grooves are clean and the side play is still not cor-
rect, replace the rings, the piston or both.
3.1
SPECIFICATIONS.

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