Derbi ATV DXR 200, Workshop Manual

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74
4-5. C
YLINDER
/P
ISTON
NOTE
SERVICE INFORMATION
CYLINDER
PISTON/PISTON RING
<0THERS>
CAUTION
AFTER DISASSEMBLY, CLEAN THE REMOVED PARTS AND CRY THEM WITH THE SLOW COMPRESSED AIR
BEFORE CONDUCTING ANY INSPECTION.
STANDARD (MM) 125/150 SERVICE LIMIT (MM)125/150
01. Cylinder bore
02. Cylinder war page
03. Cylindricity
04. True roundness
ITEM
56,5 - 56,6 / 62 - 62,1
0,01 or less
0,01 or less
56,6 / 62,1 or more
0,05 or more
0,05 or more
STANDARD (MM) 125/150
SERVICE LIMIT (MM)125/150
ITEM
01. Ring - grove (top)
clearance (2nd)
0,5 - 0,75 / 0,45 - 0,7
0,5 - 0,75 / 0,8 - 1,05
02. Ring end gap(top)
clearance (2nd)
side rail oil ring
0,15 - 0,35 / 0,1 - 0,3
0,15 - 0,35 / 0,1 - 0,3
0,2 - 0,5 / 0,3 - 0,9
03. Piston O.D. (125)
(150)
56,45 - 56,48
61,97 - 61,99
04. Piston O.D. measure :
location
10mm from bottom of piston skirt
05. Piston - Cyl. (125)
clearance (150)
0,01 - 0,075
0,005 - 0,065
06. Pis. Pin hole I.D.
15,002 - 15,008 15,012 or more
0,135 or more
0,125 or less
56,3 or less
61,8 or less
0,5 or more
0,5 or more
0,5 or more
0,85 / 0,09 or more
0,85 / 1,05 or more
STANDARD (MM) SERVICE LIMIT (MM)125/150
ITEM
02. Piston - Pis. pin
clearance
01. Piston pin O.D.
03. Connecting rod
small
end I.D.
0,005 - 0,013
15,003 - 15,005
15,01 - 15,02
0,015 or more
15,012 or more
15,032 or more