-25-
CAUTION: Any soot remaining in the Cylinder [74] may cause contact between Piston (M) [86]
and the Cylinder [74], resulting in a malfunction.
• Completely remove liquid packing (ThreeBond 1207C) on the contacting surfaces of the Crank Case
[96]
and Cylinder
[74]
. At that time, be careful not to damage the contacting surfaces.
• Completely remove liquid packing (ThreeBond 1207C) on the contacting surfaces of the Cylinder
[74]
,
Scavenging Cover (A)
[84]
, and Scavenging Cover (B)
[70]
. At the time, be careful not to damage the
contacting surfaces.
• Before applying new liquid packing (ThreeBond 1207C) on the contacting surfaces of the Cylinder
[74]
,
Scavenging Cover (A)
[84]
, and Scavenging Cover (B)
[70]
, completely degrease the contacting
surfaces.
• Before mounting the Crank Shaft
[93]
, apply 0.2 to 0.6 gram of 2-cycle oil to the inside of the Cylinder
[74]
and the periphery of Piston (M)
[86]
.
• Before applying new liquid packing (ThreeBond 1207C) on the contacting surfaces of the Cylinder
[74]
and Crank Case
[96]
, completely degrease the contacting surfaces.
13. Disassembly and reassembly of the piston and piston ring
[Tools required]
• Long-nose pliers
• J-359 jig (No. 6695741) (piston pin extraction tool ass’y)
(1) Disassembly
Remove the Crank Worm Ass’y
[89]
from the Cylinder
[74]
before disassembly.
• Use long-nose pliers to remove the two Circlips
[85]
.
• Insert a hex. socket hd. bolt M5 x 12 into the
pushing side of the Piston Pin
[88]
, and then turn
the pin pullout bolt of the J-359 jig (piston pin
extraction tool ass’y) clockwise to pull out
the
Piston Pin
[88]
.
CAUTION: Do not scratch Piston (M) [86].
• Remove the Piston Ring (XR1-1856)
[87]
from
Piston (M)
[86]
by widening the gap of the piston
ring so as not to damage the periphery of the
piston. (When the Piston Ring (XR1-1856)
[87]
is
firmly adhered, insert a gap gauge (T0.3)
between the Piston Ring (XR1-1856)
[87]
and
Piston (M)
[86]
, and then remove the piston ring.)
• Cylinder and scavenging covers
•
Removing the piston
Hex. socket hd.
bolt M5 x 12
Pin pullout bolt
J-359 jig
(piston pin extraction tool ass’y)
Crank Case
[96]
Hex. Socket Hd. Bolt
(W/Sp. Washer) M5 x 18
[95]
Crank Shaft
[93]
Piston
Ball Bearing
[92]
Worm
[90]
Oil Seal
[91]
Oil Seal
[91]
Cylinder
[74]
Scavenging Cover (B)
[70]
Scavenging Cover (A)
[84]
Hex. Socket Hd. Bolt M4 x 10
[69]
Hex. Socket Hd. Bolt M4 x 10
[69]
Crank Worm Ass’y
[89]
Ball Bearing
[92]