5-32 ENGINE TOP END
Cylinder Head (see Cylinder Head Removal)
Front Engine Mounting Bolts (Both Side) [A] (see Engine
Removal in the Engine Removal/Installation chapter)
Front Engine Brackets (Both Side) [B] (see Engine Re-
moval in the Engine Removal/Installation chapter)
If a new cylinder is used, use new piston ring.
Install the dowel pins [A] and new cylinder gasket [B].
The piston ring openings must be positioned as shown in
the figure. The openings of the oil ring steel rails must be
about 30 ∼ 40° of angle from the opening of the top ring.
Top Ring [A]
Second Ring [B]
Oil Ring Steel Rails [C]
Oil Ring Expander [D]
30 ∼ 40° [F]
Apply molybdenum disulfide oil solution to the cylinder
bore, piston rings and piston.
Prepare two auxiliary head bolts with their head cut.
Install the two bolts [A] diagonally in the crankcase.
Position the crankshaft so that all the piston heads are
Install the cylinder block.
Insert the piston rings with your thumbs.
Remove the cylinder (see Cylinder Removal).
Place a clean cloth under the pistons and remove the pis-
ton pin snap ring [A] from the outside of each piston.