30 MS 210, MS 230, MS 250
: Position the piston rings so that 
the radii at the ring gap meet at 
the fixing pin in the piston groove 
when the rings are compressed.
: Slide piston carefully into the 
cylinder.
The piston rings are compressed by 
the inner taper of the cylinder.
VA
135RA079
: Position the crankshaft so that 
the long crankshaft stub (1) 
points to the right, looking at 
exhaust port (2).
– Push piston home until ball 
bearings are seated.
VA
135RA080
1
2
: Apply a thin bead of sealant to 
the engine pan mating face – 
b 13.
Follow manufacturer’s instructions 
for use of sealant.
135RA082 VA
: Fit the engine pan so that the 
seat (1) for the oil pump is at the 
same side as the long crankshaft 
stub (2).
: On easy start version, unscrew 
the plug, screw home the 
decompression valve and tighten 
it to 14 Nm (10.3 lbf.ft).
: Push the manifold on to the 
intake port so that the straight 
faces are in alignment.
Assemble all other parts in the 
reverse sequence.