- 19 -
(2) CRANKSHAFT
(a) Wrap the key-way portion of the crankshaft with
polyvinyl tape and insert the crankshaft into the
crankcase, taking care not to damage the oil
seal lip .
(b) Insert the woodruff key (for the flywheel magneto) .
NOTE: Do not insert the woodruff key before
inserting the crankshaft into the
crankcase .
3-4-2 ASSEMBLY STEPS AND PRECAUTIONS
(1) OIL SENSOR
(a) Mount the oil sensor and fix the wire with the
clamp .
NOTE :
Make sure to not damaged (cut off) the oil
sensor wire after assembly procedure .
Fig .3-25
Fig .3-26
3-4 REASSEMBLY PROCEDURE
3-4-1 NOTES ON REASSEMBLY
(1) Clean the each parts carefully, taking special care with the piston, cylinder, crankshaft, connecting rod
and bearings .
(2) Scrape off any carbon deposits on the cylinder head and the piston head . Be particularly careful when
removing carbon from the piston ring grooves .
(3) Inspect the oil seals for any damage to the lip . Replace them if damaged . Apply oil to the lip before
reassembly .
(4) Replace all the gaskets with new ones .
(5) Replace the keys, pins, bolts and nuts with new ones, if necessary .
(6) Tighten nuts and bolts to the specified torque settings .
(7) When reassembling the engine, apply oil to all moving parts .
(8) Check clearances and end plays and adjust, if necessary .
(9) When mounting any major part during reassembly of the engine, rotate it with your hand to check for
any jamming or abnormal noise.
CRANKSHAFT
POLYVINYL TAPE
WIRE CLAMP
OIL SENSOR
M6 x 10 TAPPING BOLT : 1 pc.
Tightening torque
8 .0 - 10 .0 N
・
m
(80 - 100 kgf
・
cm)
(5 .8 - 7 .2 ft
・
lb .)
