47
6
Cylinder and piston
502 50 70-01
Assembly
Clean the crankcase.
Assemble the piston on the connecting
rod.
Assembly
Clean the crankcase.
Fit the piston on the connecting rod so
that the arrow on the piston points
towards the exhaust port. Lubricate the
gudgeon pin’s needle bearing with a
few drops of engine oil.
Direct the arrow on the top of the piston
towards the exhaust port. Press in the
gudgeon pin and fit the circlips.
NOTE!
Place a rag in the crankcase opening to prevent the circlip from falling into
the crankcase in case it should fly out. Check that the circlips are correctly
fitted into the grooves by turning the clips with flat nosed pliers.
Check that the pulse channel (A) in the
cylinder is open.
Assemble the cylinder with the help of
assembly set 502 50 70-01.
Check that the pulse channel (A) in the
cylinder is open.
Place a new cylinder base gasket on
the crankcase. Lubricate the piston and
the big-end bearing with a few drops of
engine oil.
Assemble the cylinder with the help of
the piston ring compressor in the
assembly set 502 50 70-01.
Lubricate the seal (A) using engine oil
and press it into the cylinder
connections. Pay attention to the
connection for the pulse channel.
Check that the ”distance piece/heat
shield (B) is not cracked or shows signs
of other damage that can cause
leakage from the carburettor
connection. Lubricate the connections
on the ”rubber seal” using engine oil
and fit the shield.
Check that the manifold (C) for
additional air is not cracked or
perforated, which can result in leakage.
Fit the manifold.
NOTE!
Do not turn the cylinder, as the piston rings can easily be broken.
Tighten the 4 screws diagonally crosswise.
NOTE!
Use silicone glue on the
connections for the manifold on
the heat shield.
Assemble the remaining parts in the
reverse order as set out for dismantling.
See respective sections in the manual.
Summary of Contents for 333R
Page 1: ...Workshop manual 333R 335R English ...
Page 2: ......
Page 36: ...34 4 Centrifugal clutch ...
Page 40: ...38 5 Angle gear ...
Page 50: ...48 6 Cylinder and piston ...
Page 60: ......
Page 61: ......
Page 62: ...2005W23 115 00 92 26 ...