ENGINE
CS-271T
55
8-6 Inspecting cylinder
1. Remove 4 bolts securing crankcase.
2. Gently tap both crankshaft ends using plastic
mallet to remove lower crankcase with crankshaft
and piston assembly.
3. Inspect cylinder combustion chamber and clean
with a plastic or wooden scraper if carbon is found.
NOTE:
Do not use metal tools, or damage to cylin-
der wall may result.
4. Inspect cylinder wall and replace with new one if
plating is worn, peeled away, scored or exposing
cylinder base metal.
8-7 Inspecting piston and piston ring
1. Inspect piston ring and replace it if broken or
scored, or if it exceeds service limits (Refer to “1-
5”).
2. Inspect piston crown. Clean with fine sand pa
-
per, oil stone, or soft cleaning brush (A) if carbon is
found.
3. Inspect top land, ring groove and skirt. Clean
them with soft cleaning brush (A) if carbon is
found.
NOTE:
Do not use square end of broken piston
ring when cleaning piston ring groove, otherwise
piston ring groove might be damaged.
4. Remove snap rings from both sides of piston
pin.
5. Push piston pin out from piston.
NOTE:
If piston pin is tight, use piston pin tool
89770230131 (B) with adapter (C) stamped “8” on
an end.
6. Inspect needle bearing and washers, and re-
place if wear or discoloration is noted.
B
C
A
Содержание CS-271T
Страница 1: ...Ord No 401 37 CS 271T ...
Страница 71: ......
Страница 72: ...Printed in Japan 1202 ...