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2) Reassemble the piston and connecting rod with the piston pin.
NOTE :Apply enough oil to the small end of the connecting rod. Be sure to place the clips on both
sides of the piston pin.
3) When installing the connecting rod assembly
into the cylinder, hold piston rings with the ring
guide as shown in Fig.5-18 (if no ring guide is
available, keep pressing the piston rings with
finger tips and gently strike the top of the pis-
ton with a plastic hummer or the like to push it
in), and check that the symbol or mark MAG
on the connecting rod is to face the flywheel
magneto side.
NOTE : Apply enough oil to the piston rings,
connecting rod plain bearings and cylinder bore
before assembly.
NOTE : The open ends of the piston rings must be 90
°
apart from each other before assembly.
5-4-3 CONNECTING ROD
1) Turn the crankshaft to the bottom dead center, lightly tap the piston head until the large end of con-
necting rod contacts the crankpin.
2) When reassembling the connecting rod cap,
match the alignment projection mark on the rod.
3) Oil scraper is to be set on the magneto side.
NOTE : After reassembly, confirm that the con-
necting rod moves lightly.
NOTE : Connecting rod cap tightening torque :
Fig. 5-18
Fig. 5-19
Table. 1
Connecting Rod
Piston Ring Guide
Mark
Crankcase
(Magneto Side)
Alignment Mark
Oil Scraper
EY15-3
EY20-3
9-11.5N.m
17-22N.m
(90-115kg.cm)
(170-200kg.cm)
(6.5-8.3ft.lb)
(12.3-14.5ft.lb)
