EY35, EY40 - Small Engine Discount

5-4-3 ASSEMBLING ORDER and PRECAUTIONS
1) Place the tappets into the crankcase.
NOTE: The intake and exhaust tappets are the same,
but mark them differently when disassembling
because of different valve clearances; and
fit them into their origianl place. Apply oil to
the tappets beforehand.
Assemble the crankshaft and camshaft at the same
time.
NOTE: The same timing mark as on the crankshaft
side is punched on the crankshaft gear inward
of the balancer gear as shown in Fig. 28. So,
match these timing marks on the crankshaft
and camshaft sides before installing these
. .
TIMING MARK ON CAMSHAFT SIDE
(Punch 2 pcskl
TIMING MARK ON CRANKSHA??
(Punch 1 pce.)
Fig. 28
shafts in the crankcase.
3) Assemble the connecting rod with the piston.
NOTE: The piston is not offset so a new piston does not require to be installed in a specific direction, but a used piston
must be marked with a sign indicating its direction when disassembling so that it can be assembled again in the
direction indicated.
CAUTION: When inserting the piston pin and fitting the clip on, be careful not to damage the piston surface.
4) Fit the piston rings on the piston. THRUST SIDE
NOTE: Each piston ring must be installed upside up,
that is, the puched mark at the open ends up.
NOTE: The oil ring consists of three parts, that is, a
spacer, lower rail, and upper rail. Fit them on UPPER RAIL LOWER RAIL
in this order. The open ends of each ring must
be as shown in Fig. 29.
Fig. 29
Fig. 30 Fig. 3 1
ASSEMBLY TYPE OIL RING
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