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5-24
POWR
E
PISTONS
SERVICE POINTS
Piston pin clip removal and installation
1. Remove and install:
● Piston pin clip
NOTE:
Before removing or installing the piston pin
clip, cover the crankcase opening with a
clean rag to prevent the piston pin clip from
falling into the crankcase.
Piston inspection
1. Eliminate:
● Carbon deposits
(from the piston crown and piston
ring grooves)
2. Inspect:
● Piston wall
Score marks → Repair with 600–800
grit wet sandpaper or replace.
NOTE:
Lightly sand the piston wall in a crisscross
pattern.
3. Measure:
● Piston skirt diameter
(with a micrometer)
Out of specification → Replace.
Piston diameter Distance a
79.899–79.914 mm
(3.1456–3.1462 in)
22 mm
(0.87 in)
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