10
WORKSHOP MANUAL
___________________________________________________________________________
List of gudgeon-pin bearings
Connecting rod
Gudgeon pin
Needle roller
Ø
2 x 13,8
Clearance
Red
19,994+19,998
Blue
15,994+15,997
1,994+1,996
1,993+1,995
0,005+0,016
0,007+0,018
Red
15,997+16,000
1,994+1,996
1,993+1,995
0,006+0,017
0,008+0,019
Blue
19,998+20,002
Blue
15,994+15,997
1,996+1,998
1,995+1,997
0,005+0,016
0,007+0,018
Blue
15,997+16,000
1,996+1,998
1,995+1,997
0,006+0,017
0,008+0,019
White
20,002+20,006
Blue
15,994+15,997
1,998+2,000
1,997+1,999
0,005+0,016
0,007+0,018
Yellow
20,006+20,010
Red
15,997+16,000
1,998+2,000
1,997+1,999
0,006+0,017
0,008+0,019
I. ENGINE
1.1.
Disassembly and Assembly of the Cylinder Head and Cylinder
Prior to disassembly take out
the carburettor flange, wich is
shared by both cylinders.
Using the box spanner loosen
and remove the eight M10 nuts to be
able to loosen and remove the
cylinder heads. Rotate the engine
until the piston of cylinder which
should be removed is in the bottom
dead center. Take out the cylinder
and cover the ensuing holes to avoid
drain of dirt. For assembly proceed
in opossite sequence. Clean the
cylinder and engine housing seating
surfaces before assembly. Oil the
cleaned cylinder working surface
and put it on the piston. During the
assembly proceed with caution,
check if piston rings sit right in the
joints to protect them from damage.
Fit new sealing under cylinderheads (in case the old is damaged). Screw the head bolts nuts home crosswise