Maico MC 250 지침서 - 페이지 16
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페이지 인쇄B.
ASSEMBLY
AND REPAIR
INSTRUCTIONS
FOR ENGINE
1.
Removal from Frame
1.1
Remove the tank
1.2
Remove the exhaust
1.3
Remove the carburetor
1.4
Remove the cylinder
brace
1.5
Remove the ignition
1.6
Remove the 10 mm x 1 engine mount bolts
front and rear
1.7
Disconnect
the chain
1.8
Loosen the 8 mm bolt on bottom
1.9
Remove the clutch cable
1.10 Remove the engine
2.
Disassembly of Engine
We suggest using the original
2.1
Drain gear oil - one (SW 17mm) drain plug
on lower left side.
2.2
Remove the cylinder
8 mm nuts (SW 13mm) at the base of the
cyl inder. The paper base gasket is removed
taking care not to tear it. Make sure no dirt
enters the crank case.
2.3
Remove the piston - the circlips on both
sides of the piston are removed with needle
nose pliers. An aluminium
move the piston pin by tapping the pin
lightly.
Use caution
sure to the side of the connecting
2.4
Lay engine on primary
timing cover.
2.5
Remove stator by loosening and removing
3 - 6 mm screws. Push rubber plug out with
screw driver.
2.6
Remove the 8 mm hex bolt from the center
of the rotor magnet and remove the nut
which keeps the magnet in position
crank shaft. A pin, available through your
dealer 60 mm long, is inserted in the middle
of the magnet and the 8 mm bolt is re-inser-
ted and tightened while crank shaft is held
stationary
by a wooden fork arou nd the
connecting
rod after piston pin is re-inserted,
widging against the wooden fork. The bolt
is tightened until the magnet pops off.
2.7
The engine is turned around with the prima-
ry case facing up. The kickstarter
removed and the 7 case screws. The cover
can then be lifted off.
2.8
Disassembly of the clutch
help of a two-prong
the clutch on the clutch push pin with the
puller, the two keeper rings are removed
head and top engine
wire
of engine
MAl CO engine stand.
by loosening the four
pin is used to re-
not to apply any pres-
rod.
case side and remove
on the
lever is
is done with the
puller. By compressing
22. Piston Disassembly
23. Pulling Ignition
Magnet